How to buy a suitable disc screen?

In industrial production, disc screens are used as an efficient screening equipment and are widely used in many fields such as mining, construction, chemical industry, and environmental protection. It realizes the grading and screening of materials through the rotation of the disc, and plays a key role in improving production efficiency and ensuring product quality. However, facing the dazzling array of disc screen products on the market, how to buy the right equipment to meet its own production needs has become the focus of attention of many companies and buyers. The following will introduce you in detail the key points and precautions when purchasing disc sieve from multiple aspects.

Clarify your own needs

1. Material characteristics analysis

Particle size range: Accurately determine the maximum particle size and minimum particle size of the material to be screened, which determines the selection of the screen hole size of the disc sieve. For example, when screening ores in the mining industry, if the ore is larger in size, it is necessary to choose a disk screen with a larger screen hole to ensure that large-particle materials can pass through the screen surface smoothly; and for the screening of fine chemical products, if the particle size of the material is smaller, small-pore screening equipment must be equipped to ensure screening accuracy.

Humidity: The humidity of the material has a significant impact on the screening effect. Materials with higher humidity tend to agglomerate, block the screen holes, and reduce screening efficiency. For example, in construction waste screening, if the material contains a large amount of water, it is necessary to consider choosing a disc screen with a special anti-blocking design, or drying and pretreating the material before screening.

Density: The movement characteristics of materials of different densities on the disc screen are different. Materials with high density have high inertia and have relatively slow jumping and moving speeds on the screen surface; materials with low density have the opposite. In coal screening, the density of refined coal and gangue is quite different. The operating parameters of the disc screen, such as speed, inclination angle, etc., need to be adjusted according to this characteristic to achieve efficient separation.

Shape: The irregularity of material shape will also affect screening. Compared with granular materials, sheet-shaped and needle-shaped materials are easier to overlap with each other, increasing the difficulty of screening. When screening sand and gravel in the building materials industry, if there are more flake particles in the sand and gravel, you need to choose a disc screen with a special screen structure that is not easy to cause materials to stagnate.

2. Capacity and efficiency requirements

Expected output: Determine the amount of materials that the disc sieve needs to process every hour or daily according to the company's production scale and plan. For example, a construction waste treatment plant with a daily output of 1,000 tons must meet or exceed this production demand when selecting a disc screen to ensure the normal operation of the production line.

Screening efficiency objectives: Screening efficiency is directly related to product quality and production efficiency. For some industries that require extremely high product purity, such as the food and pharmaceutical industries, disk screens need to have high screening efficiency and separate unqualified impurities to the maximum extent to ensure that the product meets quality standards.

3. Site and installation conditions

Space dimensions: measure the length, width and height of the installation site to ensure that the shape and size of the disc screen can be adapted to avoid the inability to install due to too large equipment or too small to affect the production layout. For some small factories with limited space, it may be necessary to choose a compact disc screen model with a small footprint.

Basic conditions: Understand the ground load-bearing capacity of the installation site. If the ground load-bearing is insufficient, the foundation needs to be reinforced to prevent the disc screen from tilting and displacement due to ground settlement during operation, affecting the normal operation and service life of the equipment. At the same time, the impact of the vibration of the equipment on the surrounding environment and other equipment should be taken into account, and vibration isolation measures should be taken if necessary.

Screen reliable manufacturers

1. Check the factory qualifications and reputation

Business license and production license: Check whether the manufacturer has a legal business license and a production license required by relevant industries. Legal and compliant manufacturers will follow strict quality standards and specifications when producing equipment, and the product quality is more guaranteed. For example, in the field of environmental protection equipment production, manufacturers with environmental protection product production licenses are more trustworthy in terms of environmental protection performance.

Industry reputation and customer evaluation: Through Internet search, industry forums, customer feedback and other channels, we can understand the reputation of manufacturers in the market. You can view the manufacturer's past customers' evaluations to understand its performance in terms of equipment quality, after-sales service, etc. If a manufacturer is praised by customers for its stable equipment quality and timely after-sales service response in multiple industry forums, then the manufacturer has an advantage in terms of reputation.

Business years and experience accumulation: Generally speaking, manufacturers with longer business years have accumulated richer experience in the research and development, production, sales and services of disc screens. They have a deeper understanding of industry development trends and are able to continuously optimize product design and performance according to market demand. For example, some established manufacturers with a history of 20 or 30 years of production often perform excellent in terms of stability and reliability.

2. Evaluate technical strength and R&D capabilities

R&D team and innovative achievements: Understand whether the manufacturer has a professional R&D team, as well as the team's technical level and innovation capabilities. The R&D team can continuously launch new technologies and new products according to customer needs and market changes. For example, some manufacturers have developed intelligent disk screens with independent intellectual property rights, which can automatically adjust screening parameters according to material characteristics, greatly improving screening efficiency and intelligence.

Technical cooperation and exchange: Check whether the manufacturer conducts technical cooperation and exchanges with scientific research institutions, universities, etc. Through cooperation, manufacturers can absorb cutting-edge technologies and concepts and improve the technical content of their own products. For example, a manufacturer cooperated with the School of Mechanical Engineering of a well-known university to jointly carry out optimization research on disc screens, and its products have more advantages in technological innovation.

Product patents and certification: Check whether the manufacturer's products have relevant patents and whether they have passed international or domestic quality, safety, environmental protection and other certifications. Patents reflect the manufacturer's technological innovation capabilities, while certification is an authoritative recognition of product quality and performance. For example, the disc screen that passes ISO quality management system certification and CE safety certification complies with international standards in terms of quality and safety, and can win customers' trust.

3. Consider production and supply capabilities

Production scale and equipment: On-site inspection of the manufacturer's production workshops and understand its production scale, advanced level and quantity of production equipment. Large-scale production workshops and advanced production equipment can ensure product production efficiency and quality stability. For example, manufacturers with automated production lines can achieve precise processing and efficient assembly of parts when producing disc screens to reduce human errors.

Inventory and supply cycle: Ask the manufacturer's product inventory status and the supply cycle after receiving the order. For some customers who urgently need equipment to be put into production, it is crucial for manufacturers to supply quickly. At the same time, reasonable inventory management also reflects the manufacturer's ability to grasp market demand. For example, a certain manufacturer has established a complete inventory management system, which can complete the shipment within a short time after receiving the order, meeting the urgent needs of customers.

Customized production capacity: If the enterprise has special specifications and functional requirements for disc screens, it is necessary to examine the manufacturer's customized production capacity. Manufacturers with customized production capabilities can design and produce equipment that meets the requirements according to customers' personalized needs. For example, some customers need to add special material conveying devices or screening trays with extremely high screening accuracy requirements, and customized manufacturers can meet these special needs.

Comparison of product performance

1. Core component quality

Disc material and manufacturing technology: Disc is the core component of the disc screen, and its material directly affects the service life of the equipment and the screening effect. High-quality discs are usually made of high-strength, wear-resistant and corrosion-resistant materials, such as stainless steel, alloy steel, etc. At the same time, advanced manufacturing processes can ensure the dimensional accuracy and surface quality of the disc, and reduce the adhesion and stagnation of materials on the screen surface. For example, discs made using laser cutting and precision casting processes have better performance in terms of accuracy and durability.

Drive system reliability: The drive system is responsible for driving the disc rotation, and its reliability is crucial. Check the brand, power, speed adjustment range and other parameters of the drive motor, as well as the quality and stability of the transmission devices between the motor and the disc (such as belt transmission, chain transmission, gear transmission, etc.). The motors of well-known brands are more guaranteed in terms of performance and reliability, while a reasonably designed transmission device can reduce energy loss and improve equipment operation efficiency. For example, the disc screen using a variable frequency speed control motor can flexibly adjust the speed according to material characteristics and screening requirements to achieve more accurate screening control.

Support and frame structure strength: The support and frame structure of the disc screen need to withstand vibrations and the weight of materials during the operation of the equipment, and must have sufficient strength and stability. Observe the material, welding process and structural design of the frame to ensure that the frame is not prone to deformation or breaking. The frame made of high-strength steel and strictly welded quality inspection can ensure the stability and reliability of the equipment during long-term operation. For example, some manufacturers adopt reinforced frame structure design, which increases support points and reinforcement reinforcement, effectively improving the frame's load-bearing capacity.

2. Screening performance indicators

Screening Accuracy: Screening Accuracy is one of the key indicators to measure the performance of disc screens, and it directly affects product quality. When choosing a disc sieve, you must understand the screening accuracy it can achieve, that is, the degree to which materials of different particle sizes can be accurately separated. It can be evaluated through the technical parameters, product instructions, and actual on-site testing provided by the manufacturer. For example, for some industries with extremely high particle size requirements, such as the production of electronic materials, the screening accuracy of the disc screen can reach ±0.1mm or even higher.

Processing capacity: Processing capacity refers to the amount of material that the disc screen can process in a unit time. According to your own production needs, select equipment that matches processing capabilities. If the processing capacity is too small, it cannot meet the production progress; if the processing capacity is too large, it will cause waste of equipment investment. When comparing disc screens from different manufacturers, we must comprehensively consider the model, specifications, operating parameters and other factors of the equipment to accurately evaluate its actual processing capabilities. For example, in the construction waste treatment industry, it is necessary to select a disc screen with the appropriate processing capacity based on the scale of the production line and the daily processing volume requirements.

Screening efficiency: Screening efficiency reflects the ability of the disc sieve to separate qualified particles from the material. Efficient screening efficiency can improve production efficiency and reduce production costs. To understand the screening efficiency of disc screens under different material characteristics and operating conditions, you can obtain them through the manufacturer's experimental data and customer feedback. Some advanced disc screens can achieve higher screening efficiency by optimizing the screen structure and improving material conveying methods, such as reaching more than 90%.

3. Equipment stability and durability

Operation stability test: The manufacturer is required to provide equipment operation stability test reports, or watch the equipment operation status on site. During the working process of the stable-operated disc screen, the vibration is uniform and the noise is low, and there will be no abnormal shaking or lag. For example, through long-term continuous operation tests, the performance indicators of the equipment remain stable, indicating that its operating stability is good.

Durability Design and Material Selection: In addition to the quality of core components, the overall durability of the equipment is also related to design and material selection. A reasonable structural design can reduce stress concentration during operation of the equipment and extend the service life of the equipment. At the same time, the use of high-quality materials to manufacture the equipment's shells, protective devices and other components can improve the equipment's corrosion resistance and wear resistance. For example, some manufacturers use corrosion-resistant coatings to the equipment shell, which effectively extends the service life of the equipment in harsh environments.

Consumable parts replacement and maintenance convenience: Understand the frequency and difficulty of replacement of consumable parts (such as discs, bearings, seals, etc.) of the disc screen, and whether the manufacturer can provide timely supply of consumable parts. Consumable parts are easy to replace, which can reduce equipment maintenance costs and downtime. For example, some manufacturers design disc screens with consumable parts with modular design. When replacing, only the corresponding modules need to be disassembled without large-scale disassembly of the entire equipment, which greatly improves maintenance convenience.

Pay attention to after-sales service

1. Installation and debugging services

Professional installation team: Choose a manufacturer that can provide a professional installation team to ensure that the disc screen can be installed correctly. Professional installers are familiar with the equipment structure and installation process, can complete the installation work in a short time, and ensure the installation quality. For example, during the installation process, the manufacturer's installation team can strictly follow the equipment installation instructions and accurately debug all parts of the equipment to ensure that the equipment can operate normally after installation.

On-site debugging and training: After installation is completed, the manufacturer should provide on-site debugging services to conduct comprehensive debugging of the equipment to ensure that the equipment performance reaches its best state. At the same time, the operators of the users are trained to make them familiar with the operating methods of the equipment, daily maintenance points, common troubleshooting and other knowledge. Through on-site training, operators can quickly get started and reduce equipment failures and production accidents caused by improper operation. For example, during on-site debugging, the manufacturer's technicians explain in detail the operating procedures and precautions of the equipment, and conduct actual operation demonstrations, allowing the operator to operate it himself until they are proficient.

2. Maintenance and maintenance support

After-sales repair response time: Understand the manufacturer's response time after receiving the equipment failure report, as well as the time commitment to arrive at the site for repair. Fast after-sales repair response can reduce equipment downtime and reduce production losses. For example, some manufacturers promise to respond within 24 hours after receiving the repair report and arrive on site for repair within 48 hours, providing customers with strong after-sales guarantee.

Regular maintenance service: Ask the manufacturer whether it provides regular maintenance services, as well as the content and cycle of maintenance. Regular maintenance can promptly detect potential problems of the equipment, deal with them in advance, and extend the service life of the equipment. For example, the manufacturer's maintenance services include comprehensive inspection, cleaning, lubrication, adjustment and other work of the equipment, and maintenance of the equipment in accordance with the prescribed maintenance cycle (such as once a quarter) to ensure that the equipment is always in good operating condition.

Maintenance accessories supply guarantee: Ensure that the manufacturer can provide various accessories required for equipment maintenance in a timely manner to avoid equipment shutdown due to shortage of accessories. Understand the manufacturer's accessories inventory, as well as the supply channels and supply cycles of accessories. For example, some manufacturers have established a complete accessories inventory management system, which can quickly provide the required accessories when customers need it, and at the same time establish long-term cooperative relationships with multiple accessories suppliers to ensure the stable supply of accessories.

3. Quality Assurance Commitment

Warranty period and scope: Clarify the quality assurance period and scope of warranty for the disc screen by the manufacturer. During the warranty period, the manufacturer shall be responsible for free repair or replacement of equipment due to quality problems. Understand the start time of the warranty period, which is generally calculated from the date when the equipment is installed and debugged and accepted. For example, the manufacturer promises that the warranty period of the equipment is one year. During the warranty period, if the equipment fails due to non-human reasons, the manufacturer will provide free repair services and replace damaged parts.

Quality problem handling process: Understand the process and methods of the manufacturer when dealing with equipment quality problems. When there are quality problems in the equipment, how should customers report to repair it, how the manufacturer can diagnose faults, determine responsibility, and arrange repairs. A clear quality problem handling process can ensure that problems are solved in a timely and effective manner and safeguard the legitimate rights and interests of customers. For example, the manufacturer has formulated a detailed process for handling quality problems. After the customer discovers equipment quality problems, he can report the repair to the manufacturer's after-sales department by phone, email, etc. After receiving the repair, the manufacturer's after-sales personnel will contact the customer within the specified time to understand the fault condition, and arrange for technicians to conduct on-site inspections and repairs.

Weigh the price factors

1. Price composition analysis

Equipment cost: The price of the disc screen is mainly composed of the production cost of the equipment itself.

The entire equipment manufacturing process involves sourcing raw materials, processing parts, assembling equipment, and allocating R&D expenses. High-quality raw materials and advanced manufacturing processes increase equipment costs, leading to higher prices. For example, equipment using imported stainless steel to manufacture disc screens is typically more expensive than equipment using standard steel.

Brand and Service Value-Added: Disc screens from reputable brands often have higher brand value, offering advantages in product quality, technological innovation, and after-sales service, which are reflected in their price. Furthermore, the manufacturer's high-quality after-sales service, such as installation and commissioning, repair and maintenance, and technical training, also contributes to the overall price of the equipment. For example, disc screens from some internationally renowned brands may be relatively expensive, but they offer comprehensive, high-quality services and are highly trusted by customers.

Market Supply and Demand: The supply and demand relationship for disc screens in the market also influences prices. When market demand is strong and supply is relatively insufficient, equipment prices may rise; conversely, when market supply exceeds demand, prices may fall. For example, during a certain period, the rapid development of the construction waste treatment industry led to a significant increase in demand for disc screens, resulting in a certain price increase for this type of equipment.

2. Cost-Effectiveness Evaluation

Comparison of Comprehensive Performance and Price: When selecting a disc screen, consider not only the price but also the relationship between the equipment's performance, quality, after-sales service, and other factors. Choosing cost-effective equipment means obtaining a product with excellent performance, reliable quality, and guaranteed after-sales service at a relatively reasonable price, while meeting your production needs. For example, while one manufacturer's disc screen may be slightly more expensive than others, it excels in screening accuracy, processing capacity, and equipment stability, and offers prompt after-sales service, making it a more cost-effective option.

Long-Term Cost Considerations: In addition to the equipment's purchase price, it's also important to consider the equipment's long-term operating costs, maintenance costs, and repair costs. Some lower-priced equipment may have high energy consumption, frequent replacement of wearing parts, and a high failure rate, leading to increased long-term operating costs. On the other hand, relatively higher-priced equipment with excellent performance, while costing more to purchase, may have lower long-term operating costs. For example, an energy-saving disc screen, while more expensive to purchase, can significantly save on electricity costs over time, making it more economical in the long run. Return on Investment Analysis: Calculate the return on investment (ROI) by analyzing the potential increases in production efficiency, product quality, and cost reductions that a disc screen can bring. Choosing equipment with a high ROI can bring better economic benefits to the company. For example, a company purchased an advanced disc screen. After implementation, the screen efficiency was significantly improved, the defect rate was reduced, and production efficiency was significantly increased. The calculated ROI for this equipment was high, indicating that the purchase was a wise investment.

Contract Signing and Delivery

1. Clear Contract Terms

Equipment Specifications and Configuration: The contract should clearly specify the disc screen model, specifications, technical parameters, and configuration list to ensure that the purchased equipment is consistent with the agreed upon agreement. For example, the disc material, size, and quantity, the drive motor brand, power, and speed, and whether the equipment is equipped with special accessories should be specified.

Price and Payment Method: Specify the price, payment method, and payment schedule for the equipment. Payment options can be a lump sum payment or installments, as agreed upon by both parties. At the same time, it's important to clearly define the circumstances under which price adjustments can be made, as well as the delivery time and location after payment. The contract should clearly stipulate the equipment delivery time and location to avoid disputes caused by delivery delays or unclear locations. For example, the manufacturer should be required to deliver the equipment to the buyer's designated factory within 60 days of contract signing and bear all transportation costs and risks. The contract should also specify the manufacturer's liability for breach of contract if they fail to deliver on time, such as liquidated damages calculated as a percentage of the total contract amount, to ensure the buyer's production plans are not impacted.

Acceptance Standards and Procedures: Develop detailed equipment acceptance standards and procedures as the basis for post-delivery inspection. These standards should cover the equipment's appearance, performance parameters (such as screening accuracy, processing capacity, operating noise), and safety features. These standards should be agreed upon with the manufacturer and clearly stated in the contract. The acceptance process can be divided into two phases: arrival inspection and post-installation and commissioning inspection. Arrival inspection primarily checks the equipment quantity, packaging integrity, and the presence of all components. Post-installation and commissioning inspection requires both no-load and loaded test runs to test whether the equipment's performance meets the contractually agreed standards. For example, during a load test run, the equipment must run continuously for eight hours, recording data such as screening accuracy, processing capacity, and motor temperature. Acceptance is considered acceptable only if all data meet the requirements.

Breach of Contract and Dispute Resolution: Clarify the liability of both parties for breach of contract during contract performance. For example, if the manufacturer's equipment does not meet the contractual requirements, delivery is delayed, or the buyer fails to pay the purchase price as agreed, the specific responsibilities (such as compensation for losses, payment of liquidated damages, termination of the contract, etc.) to be assumed. Also, agree on dispute resolution methods, which typically include negotiation, mediation, arbitration, and litigation. If arbitration is chosen, the name and location of the arbitration institution must be clearly stated; if litigation is chosen, the jurisdiction of the court must be agreed upon to avoid subsequent legal disputes due to unclear dispute resolution methods.

2. Equipment Acceptance and Delivery

Arrival Acceptance: Upon arrival of the equipment, the buyer should promptly organize personnel and the manufacturer's representative to conduct a joint arrival acceptance inspection. First, inspect the equipment packaging for damage, deformation, or other defects. If the packaging is damaged, carefully inspect the equipment's exterior for dents, scratches, or other damage. Secondly, check the quantity and specifications of the equipment, parts, accessories, and technical documents (such as product manuals, certificates of conformity, warranty cards, and installation drawings) against the equipment configuration list in the contract to ensure that nothing is missing or incorrectly sent. If any equipment damage or parts are found, photographs should be taken and signed by representatives of both parties. The manufacturer should also be required to replace the damaged parts or replace the missing parts within the specified timeframe.

Post-installation and commissioning acceptance: After the equipment installation and commissioning are complete, the post-installation and commissioning acceptance phase begins. The buyer must organize technical personnel, operators, and manufacturer technical personnel to participate in the acceptance process. First, a no-load test run should be conducted to check the normal operation of all equipment components, such as smooth and smooth disc rotation, normal motor operation without abnormal noise, and smooth and secure transmission. The no-load test run should generally last no less than two hours. Any abnormalities discovered during operation should be promptly investigated and resolved by the manufacturer's technical personnel.

After the no-load test run is completed, a loaded test run should be conducted. According to the material properties and process requirements specified in the contract, an appropriate amount of material is screened to test the equipment's actual screening accuracy, processing capacity, screening efficiency, and other performance indicators. For example, for a disc screen with a required screening accuracy of ±0.5mm and a processing capacity of 50 tons/hour, during a load test run, samples of the undersize material should be taken to test the particle size distribution to confirm whether the screening accuracy meets the required standards. The material throughput per unit time should also be recorded to determine whether the required processing capacity is met. Furthermore, parameters such as vibration, noise, and motor temperature should be monitored during operation to ensure stable and safe operation. If all performance indicators meet the contractual requirements, both parties sign a certificate of acceptance and the equipment is officially delivered to the buyer. If any indicators do not meet the requirements, the manufacturer's rectification deadline and requirements must be clearly stated. After the rectification is completed, re-inspection will be conducted until the equipment passes the inspection.

Post-Delivery Support

1. Technical Support and Training Follow-up

After the equipment is delivered, if the buyer encounters technical issues during operation or routine maintenance, they can seek technical support from the manufacturer at any time. Manufacturers should provide convenient technical support channels, such as dedicated technical hotlines, online customer service platforms, or dedicated technical consultants, to promptly answer buyers' questions. For complex technical issues, manufacturers should dispatch technicians on-site within the agreed timeframe to provide guidance and solutions.

In addition, manufacturers should provide ongoing training and follow-up for buyers' operators and maintenance personnel. In addition to on-site training after equipment installation and commissioning, manufacturers can also regularly organize advanced online or offline training based on buyers' needs. This training covers equipment troubleshooting and troubleshooting, advanced maintenance techniques, and equipment performance optimization. This will help operators and maintenance personnel enhance their skills, better operate and maintain equipment, and reduce equipment failures caused by improper operation or inadequate maintenance.

2. Regular Follow-up Visits and Equipment Inspections

Manufacturers should establish a customer follow-up system to regularly review the use of delivered equipment. These visits can occur by phone, email, or on-site. The visits will assess the equipment's operating status, user experience, and any issues. They will also gather buyers' feedback and suggestions on equipment performance and after-sales service. Regular follow-up visits allow manufacturers to monitor equipment usage, identify potential issues in advance, and provide buyers with targeted solutions. For equipment that has been in use for a long time or operates in harsh environments, manufacturers can provide regular on-site inspections. Inspectors conduct a comprehensive inspection of the equipment, including the wear of core components, the operating status of the electrical system, and the condition of the lubrication system. This allows them to promptly identify potential equipment problems and provide maintenance recommendations and corrective measures. For example, if the disc disc is slightly worn during the inspection, the buyer may be advised to promptly replace the wearing part to prevent further wear and loss of screening performance. If the electrical wiring is found to be aging, the buyer may be reminded to replace the wiring immediately to prevent electrical failures.

3. Post-Warranty Service Extension

After the equipment warranty period expires, the manufacturer should continue to provide service support to the buyer, meeting their needs for equipment maintenance, repairs, and parts replacement. A post-warranty service agreement can be signed with the buyer, specifying service content, service fees, and service response time. For example, the agreement may stipulate that the manufacturer will provide lifetime maintenance services for a reasonable fee. The manufacturer will provide spare parts required for equipment repair at a preferential price and guarantee the quality and timely delivery of the parts.

In addition, the manufacturer may also provide equipment upgrade and modification services. With the continuous advancement of technology and the changing production needs of buyers, existing equipment may no longer meet new production requirements. Manufacturers can adapt the equipment to the buyer's needs by upgrading or modifying its functionality. For example, upgrading the drive system to improve operating efficiency or modifying the sieve structure to enhance screening accuracy can extend the equipment's service life, improve its cost-effectiveness, and create greater production value for the buyer.

Purchasing a disc screen is a systematic process involving multiple steps, including needs analysis, manufacturer selection, product comparison, contract signing, and equipment acceptance. This requires comprehensive consideration and careful decision-making by the purchaser. By clarifying your needs, selecting reliable manufacturers, comparing product performance, focusing on after-sales service, weighing price factors, and standardizing the contract signing and equipment acceptance process, while also prioritizing post-delivery support, you can effectively reduce procurement risks and purchase disc screen equipment that meets your production needs and is cost-effective, providing strong support for your company's production and operations.

Author : Serena Chang

Serena Chang is the writer of blog and news column. With more than 10 years of working experience in the machinery industry, she has a comprehensive understanding of environmental protection machinery and is willing to share useful knowledge of environmental protection machinery.