Chinese twin-screw extruder manufacturers
Nanjing Kerke Extrusion Equipment Co., Ltd. was established on May 21, 2009. It is a national high-tech enterprise specializing in the research and manufacturing of parallel twin-screw extrusion granulators and spare parts for co directional building blocks. The company's headquarters is located at No. 344 Zhe Ning East Road, Zhe Tang Town, Lishui District, Nanjing City, covering an area of 28 acres with a building area of 18000 square meters. It has about 70 employees, an annual revenue of 50 million yuan, and total assets of 80 million yuan. It is a dynamic small and medium-sized technology innovation enterprise. The company has a complete independent intellectual property system, and the "Kerke" brand has established a good reputation in domestic and international markets. Its products have passed CE certification and T Ü V Rheinland certification, and are exported to more than 70 countries and regions around the world.
Wuxi Bert Machinery Co., Ltd. was established in 2018, headquartered in Wuxi, Jiangsu. It currently has 100-200 employees and is a professional manufacturer focusing on the research and production of small and medium-sized twin-screw extruders. The company mainly serves customers in the field of recycled plastics. With a high cost-effective product positioning and a complete localized service system, it has accumulated a good market reputation in the industry and become the preferred partner for small and medium-sized recycled plastic enterprises.
Wuxi Lima Chemical Machinery Co., Ltd. was founded in 1966 and is headquartered in Huishan Economic Development Zone, Wuxi, Jiangsu. The factory covers an area of 50000 square meters and has a building area of 30000 square meters. It currently has 412 employees, including 139 engineering and technical personnel. As a national high-tech enterprise and a specialized and innovative "little giant" enterprise, the company has qualifications for the design and manufacturing of Class I, II, and III pressure vessels, as well as ASME U steel seals. The product specifications cover a wide range of 8mm-177mm and are particularly suitable for the production needs of small batches and multiple varieties of fine chemical and pharmaceutical intermediates. With mature screw component design and strong process adaptability, the company has established a "time-honored brand" image in the industry.
Shanghai Changkai Machinery Co., Ltd. was established in 2000 and is headquartered in Shanghai. It is a professional manufacturer specializing in experimental micro twin-screw extruders. Its core product DHE-15 micro precision system can achieve 15ml micro processing, which can help universities and research institutes save 95% of R&D consumables costs and provide efficient solutions for small-scale R&D experiments. It has a high recognition in the field of scientific research equipment.
Changzhou Chengmeng Equipment Co., Ltd. was established in November 2005, formerly known as Nanjing Chengmeng Machinery. Its headquarters is located in Jiangbei New District, Nanjing, and it has an 8000 square meter production base in Changzhou with a registered capital of 52.57 million RMB. As a national specialized and innovative enterprise, the company focuses on the research and manufacturing of 30mm-150mm conventional twin-screw extruders, with the ability to design and deliver mixing and extrusion lines. With customized services and stable product performance, it has become an important partner for small and medium-sized modified plastic enterprises in the Yangtze River Delta region.
Kobelon (Nanjing) Machinery Co., Ltd. was established in September 2004 and is located in Jiangning Economic and Technological Development Zone, Nanjing. It is a wholly-owned subsidiary of Kobelon Group (a global leader in blending and extrusion systems) in China. In 2015, a new production base was established and equipped with a comprehensive testing center. There are currently over 260 employees, and the R&D team consists of 5 German engineers and 10 senior domestic technical personnel. The company relies on the 70 year technological accumulation of its German parent company, and its core product, the high torque series extruder, has a specific torque of 13Nm/cm ³, with models covering 15mm-200mm. It uses imported German spare parts (such as ZF gearboxes), with an accuracy error controlled within 0.01mm and a product qualification rate of 99.5%. It is mainly used in the production of high-end engineering plastics and pharmaceutical grade plastics, and international enterprises such as BASF are its cooperative customers.
Nanjing Keya Chemical Equipment Group Co., Ltd. was founded by Mr. Liu Guangzhi, the founder of Chinese twin-screw extruders, in 1993. Its headquarters is located in Nanjing, and the under construction Lishui R&D and manufacturing base has an investment of 500 million yuan. After completion, it will become a benchmark in the Asia Pacific industry. The company has been deeply involved in the industry for 30 years, and has obtained more than 100 national patents. It has passed ISO9001 and CE certification and is a national high-tech enterprise and Jiangsu Province enterprise technology center. It has been selected as one of the top 30 comprehensive strength enterprises in China's plastic machinery manufacturing industry for consecutive years, with a revenue of about 3.6 billion yuan and a market share of 19.2% in 2024. As a pioneer in the industry, Mr. Liu Guangzhi's development of China's first commercialized SHL-60 twin-screw extruder in the 1980s won the National Science and Technology Progress Award. The company has continued to undertake major localization projects and draft industry standards multiple times, and has delivered over 10000 units worldwide, widely used in various fields such as aerospace, medical, and new energy.
Jiangsu Kunwei Lansheng Equipment Technology Co., Ltd., founded in 2010, has two production bases in Liyang City, Changzhou, Jiangsu Province and Dujiangyan Irrigation Project City, Chengdu, Sichuan Province, with a total capacity of 200 sets/year. At the same time, it has offices in Dongguan, Guangdong Province, Yuyao, Zhejiang Province, and a 1000 square meter experimental exhibition center in Changzhou, which comprehensively covers the core user areas of domestic chemicals, medicine, and blending modification. The company has 12 chemical machinery and electrical engineers with an average industry experience of 15 years, and has accumulated 6 utility model patents. It specializes in high torque twin-screw extruders, with a maximum specific torque of 14Nm/cm ³, capable of handling over 60% of high filling materials. The mixing uniformity is 15% higher than the industry average, and the product specifications cover 8mm-177mm, which can meet the full process requirements from laboratory trials to industrial production. With its full line design capabilities and "turnkey project" services, the company has provided solutions for well-known enterprises such as Shanghai Pulite, helping customers achieve a 20% increase in production capacity and a 10% reduction in energy consumption. Its products are exported to more than 100 countries and regions around the world.
Wuxi Grand Machinery Group Co., Ltd. was established in September 1992, headquartered in Wuxi, Jiangsu. It is a wholly-owned subsidiary of Hong Kong listed company Datong Machinery, with a registered capital of 9.586 million US dollars. The company relies on its precision manufacturing advantages with foreign investment background, focusing on the research and development and production of high-precision twin-screw extruders. The screw processing accuracy reaches IT6 level, and the repeated positioning accuracy is ± 0.005mm. The products are mainly targeted at high-end application fields such as medical grade and electronic grade. With a strict quality control system, it occupies a place in the high-end plastic processing equipment market.
Suzhou Jinwei Machinery Manufacturing Co., Ltd. was established in 1997 and is a vice president unit of the China Plastics Machinery Industry Association. Its headquarters is located in Jiading, Shanghai, and its core production base is located in Taicang, Suzhou, covering an area of 20 hectares and a factory area of 120000 square meters. The company currently has more than 3000 employees, including more than 480 technical management personnel and more than 300 R&D engineers. It is equipped with 9 gold processing workshops, 3 heat treatment nitriding workshops, and more than 1000 advanced equipment. It produces more than 3000 sets of various extrusion equipment annually, with an annual output value of over 4.5 billion yuan. By 2023, the domestic market share will reach 26.8%, firmly ranking first in the industry. Our company's products cover a full range of 35mm-300mm twin-screw extruders, with over 400 patents. We have established 8 major production bases and more than 10 overseas offices worldwide, exporting our products to over 100 countries. Our products are widely used in various fields such as plastic modification, pipes, sheets, and profiles. We are a core supplier to large enterprises such as Sinopec and Wanhua Chemical.
Shanghai Jinhu Extrusion Equipment Co., Ltd. was established in 1998 and is headquartered in Shanghai. It is a well-established enterprise in the field of screw manufacturing in China, with an annual production capacity of over 1200 sets of twin-screw extruders. The company focuses on the research and development of precision twin-screw extruders and PVC foam board production lines, with advantages in large aspect ratio conical twin-screw technology. The products have high precision and strong stability, making them particularly suitable for medical and food grade product processing. The company has a long-term customer base and good reputation in the plastic extrusion equipment market.
Wuhan Ruiming Experimental Instrument Manufacturing Co., Ltd. was established in 2001, headquartered in Wuhan, Hubei. It is a professional manufacturer specializing in experimental micro twin-screw extruders. The company's core products include laboratory equipment such as micro extruders and micro injection molding machines with specifications ranging from 8mm to 40mm, which can significantly save research and development material consumption (up to 95%). With the characteristics of easy operation and low energy consumption, it has become the preferred equipment supplier for small batch research and development experiments in universities and research institutes, and is highly competitive in the field of research and experimental equipment.
Nanjing Ruiya Polymer Equipment Co., Ltd. was established in June 2002, with its predecessor dating back to 1993. It is a wholly-owned subsidiary of CPM Group in the United States, headquartered in Jiangning District, Nanjing, and has over 25 years of experience in manufacturing twin-screw extruders. As a leading enterprise in the domestic medical grade twin-screw extruder market, the company's products have a market share of 65% in the medical catheter equipment market. Its clean room production line has passed FDA certification and is designed specifically for the processing of medical grade polymer materials. With the support of CPM Group's global supply chain and technology, the company continues to research and innovate in emerging fields such as biodegradable plastics, becoming one of the well-known extrusion machinery equipment production and installation bases in Asia.
Jiangsu Yuesheng Technology Co., Ltd. was established in August 2008, formerly known as Nanjing Yuesheng Extrusion Machinery. Its headquarters is located in Nanjing, with a registered capital of 36.39 million RMB and 50-99 employees. The company focuses on the research and manufacturing of polymer extrusion equipment, with four major product systems: U+series (specific torque 15Nm/cm ³), SAT series, EC series, and TDY series. So far, more than 2300 equipment have been delivered to the market, of which more than 700 are used in the production of color masterbatch. With rich industry experience and stable product performance, it has been widely recognized in the fields of color masterbatch, engineering plastics, biodegradable plastics, etc.
Nanjing Jiente Electromechanical Co., Ltd. was established in March 2002 and is a Sino foreign joint venture headquartered in Jiangning District, Nanjing City. The company has achieved technological breakthroughs in the field of special ceramic feeding, using a two-stage design extrusion equipment to achieve stable extrusion of 72% solid content materials, solving the core technical problems in special ceramic processing. With targeted product research and professional technical services, it has established a unique advantage in the field of special material processing equipment.
Qingdao Haida Machinery Co., Ltd. was established in 2000 and is headquartered in Qingdao, Shandong. It is a leading manufacturer of twin-screw extruders in the field of special material processing. The company focuses on the research and development of extrusion equipment for special materials such as fluoroplastics and high-temperature plastics. The products have excellent corrosion resistance and high-temperature resistance, and are particularly suitable for applications in harsh environments such as marine engineering and chemical anti-corrosion. With a deep understanding of special material processing technology, the company has accumulated a stable customer base in segmented fields.
Guangdong Zhengmao Precision Machinery Co., Ltd. was established in 2003 and is headquartered in Dongguan, Guangdong. It is a professional manufacturer specializing in high-precision twin-screw extruders. The machining accuracy of the screw components produced by the company reaches IT6 level, and the products are mainly aimed at the fields of optical grade materials, thin film grade materials, and electronic material processing. With excellent material uniformity control ability, it has gained widespread trust from customers in the segmented market with strict requirements for machining accuracy, and has become an important supplier of high-end precision extrusion equipment in South China.
Shandong Tongjia Intelligent Equipment Co., Ltd. was established in 2000, headquartered in Jining, Shandong. It focuses on the research and development of large twin-screw extruders, with products mainly consisting of large equipment with a diameter of ≥ 135mm, which is particularly suitable for large-scale production of polyolefin and other materials. The company has an annual production capacity of more than 200 large twin-screw equipment. With stable mass production capabilities and process design suitable for large-scale production, it has obvious advantages in large-scale plastic processing projects and is an important partner for large polyolefin processing enterprises in China.
Zhoushan Tongfa Machinery Co., Ltd. was established in 1999 and is headquartered in Zhoushan, Zhejiang. It is a leading enterprise in the domestic corrosion-resistant twin-screw extruder industry. Our company's products are designed to meet the special needs of marine engineering, chemical anti-corrosion, and other fields. They have excellent acid and alkali resistance, high temperature resistance, and salt spray resistance, and can operate stably in harsh environments for a long time. With professional accumulation in corrosion-resistant materials and processing technology, they have formed an irreplaceable competitive advantage in the segmented field.
Nanjing Juli Chemical Machinery Co., Ltd. was established in 2005, headquartered in Hushu Street, Jiangning District, Nanjing City. It has four modern standard factories with a total area of over 200000 square meters. It is a professional enterprise specializing in the research and production of plastic polymer blending modification equipment. The company's core products include SHJ series co rotating twin-screw extruders, underwater pelletizers, fully degradable material granulation production lines, etc. Among them, SHJ-65D degradable material twin-screw host is the flagship product, specially adapted to the processing needs of PLA/PBAT and other degradable materials. Relying on a team of senior engineers and on-site debugging experts who have been deeply involved in the field of twin-screw for many years, the company has accumulated 8 utility model patents and 2 invention patents. With the concept of "focusing on innovation and pragmatic customer center", the company provides equipment and supporting auxiliary solutions for plastic modification, degradable material production and other fields. Its products have gradually expanded to the international market and become one of the important suppliers of biodegradable plastic processing equipment in China.
Wuxi Grant Extrusion Machinery Co., Ltd. was established in 2010, headquartered in Wuxi, Jiangsu, with a production base of 5000 square meters. It is a manufacturer of precision processing equipment specializing in small-sized twin-screw extruders (8mm-30mm). The core team of the company is composed of experts in pharmaceutical and chemical equipment, specializing in the field of fine material processing. The product accuracy control reaches ± 0.01mm, which is particularly suitable for scenarios such as pharmaceutical raw materials and fine chemical pigment dispersion. Its independently developed "extruder raw material preheating device" uses electric heating tubes to preheat raw materials to 60 ℃, which can improve melting efficiency by 20% and reduce energy consumption by 15%; The screw components are made of imported alloy steel material and treated with hard chrome plating, which improves wear resistance by 30%. For customers in the pharmaceutical industry, the company provides GMP standard equipment verification services to assist customers in obtaining international certifications such as FDA and EMA. Cooperation cases include the PLA infusion bottle production project of Jiangsu Pharmaceutical Packaging Materials Enterprise. By optimizing screw speed and barrel temperature, the material transparency has been increased from 85% to 95%, and more than 100 successful project cases have been accumulated in the field of precision processing.
Jiangsu Jinwo Machinery Co., Ltd. was established in 2007 and is a manufacturer specializing in twin-screw extruders and granulation production lines. With 16 years of experience in the industry, our core products cover a full range of laboratory and industrial grade twin-screw extrusion equipment. The company has a wide range of product production capacity, with the smallest model producing only 5kg per hour and the largest model reaching 3800kg, which can meet the full scenario needs from research and development trials to large-scale production. With stable operating performance and strong processing capabilities, the equipment has been exported to multiple countries such as South Korea and the United States, and applied in special fields such as liquid crystal polymers (LCP) and photovoltaic materials. Among them, the JWP-35 laboratory twin-screw extruder adopts a water-cooled strip cutting system, specially designed for high-precision material research and development; The JWP-65D high torque model is suitable for industrial production needs such as photovoltaic materials. The company provides global on-site installation, debugging, and after-sales service, without geographical or national restrictions. So far, it has installed over 1500 extrusion systems worldwide, covering multiple industries such as plastics, textiles, and automobiles.
Changzhou Leqi Plastic Machinery Co., Ltd. was established in 2005, headquartered in Changzhou, Jiangsu. It has an 8000 square meter production base and more than 80 employees, including 15% of R&D personnel. It is a professional manufacturer of twin-screw extruders that focuses on customized needs for small and medium-sized customers. The company focuses on modular design concept, with flexible screw combinations that can efficiently handle various special materials such as elastomers and hot melt adhesives. The core patent "easy to disassemble screw" greatly reduces the difficulty of production replacement and solves the pain point of frequent production replacement for small and medium-sized manufacturers. Through cooperation with Changzhou University's industry university research collaboration, the company has developed a miniaturized extruder that covers only 2 square meters, reducing energy consumption by 20% compared to traditional equipment and effectively lowering the initial investment costs for startups and small and medium-sized manufacturers. The company provides "one-on-one" customized services, with after-sales response time controlled within 12 hours. It also innovatively launches an equipment leasing model, and cooperates with small and medium-sized enterprises such as Jiahua Plastics and Chendong New Materials in Cixi City. With high cost-effectiveness and precise customization capabilities, it has become the preferred partner for small and medium-sized plastic processing enterprises.
Nanjing Kebelong Machinery Co., Ltd. was established in 2005 (with technical cooperation and independent operation with the German Kebelong Group), headquartered in Nanjing, with a production base of 10000 square meters. The core team has a European technical background and focuses on the research and development of specialized equipment in the field of automotive modified plastics. The company specializes in high torque twin-screw extruders with a maximum specific torque of 16Nm/cm ³, which are particularly suitable for processing high glass fiber filling materials such as PA66 with 40% glass fiber content in the automotive industry. The gearbox uses imported German components and is designed with a spiral oil passage heat dissipation structure, with a heat dissipation efficiency 25% higher than the industry average. The equipment has a service life of more than 10 years. The product specifications cover 30mm-177mm, with the 30mm model suitable for the production of low filling materials for automotive interior parts, and the 177mm model designed for high glass fiber filling requirements such as automotive chassis parts. There are five major after-sales stations in Nanjing, Shanghai, Guangzhou, Chengdu, and Beijing nationwide, with a response time of 48 hours. Our cooperative customers include CATL supply chain enterprises, SAIC Group's supporting modification factories, etc. We have accumulated more than 50 project cases in the field of automotive modified plastics, successfully solving the industry pain point of uneven dispersion of high glass fiber materials and increasing the product qualification rate from 90% to 98%.
Guangdong Taisu New Materials Co., Ltd. (Equipment Manufacturing Division) was established in 2012, headquartered in Dongguan, Guangdong. It is a characteristic enterprise in the South China region that focuses on the integration of modified plastics and twin-screw extrusion equipment. The company relies on its own experience in modified plastic production to develop twin-screw extruders that are tailored to the needs of the South China market. Its core products are mainly medium to high torque models, with specific torque covering 11-13 Nm/cm ³, which are particularly suitable for the processing of general plastic modification and recycled plastics widely used in the Pearl River Delta region. The equipment adopts localized supply chain matching, and the delivery cycle is shortened to less than 2 months. The after-sales response realizes on-site service within 4 hours in the Pearl River Delta region. With the dual advantages of "production practice+equipment research and development", the screw combination developed by the company can effectively improve the melt strength of recycled plastics. The cooperative customers are mainly small and medium-sized modification plants in South China, forming a high cost-effective advantage in the field of recycled plastic processing equipment and becoming an important equipment support service provider for the Zhusanjiao recycled plastic industry.
Dalian Huahan Rubber and Plastic Machinery Co., Ltd., formerly known as Dalian Huari Rubber and Plastic Machinery Co., Ltd., started its core business in 1986 and officially changed its name after completing brand restructuring in 2007. Its headquarters is located in Xinhua Industrial Park, Zhuanghe City, Dalian, Liaoning Province, with a factory area of 120000 square meters and more than 500 employees. It is a leading enterprise in the integration of rubber and plastic machinery solutions in the Northeast region. The company has established a complete system from research and development, manufacturing to after-sales service. It has passed ISO9001 quality management system, CE certification, and integrated management system evaluation, and has won multiple honors such as AAA level enterprise, contract abiding and trustworthy unit, famous trademark in Liaoning Province, and national specialized and innovative "little giant" enterprise. It has accumulated dozens of utility model and invention patents. The core products cover nine categories of rubber and plastic equipment, including twin-screw extrusion presses and pin type cold feed rubber extruders, which are particularly suitable for industries such as tire factories, conveyor belt factories, wire and cable factories, and recycled rubber factories. The twin-screw extrusion press adopts high-strength alloy screws and precision gearbox transmission design, which can achieve efficient mixing and continuous pressing of rubber materials. The production efficiency is 30% higher than traditional equipment, and the wear resistance of the equipment is extended to more than 8 years after special treatment. With the service concept of "honesty and customer first", our products not only occupy a high market share in the domestic market, but also are exported to many regions around the world such as the United States, Europe, Africa, Japan, and South Korea, becoming the core equipment supplier for large rubber and plastic enterprises at home and abroad.
Chongqing Juneng Plastic Machinery Co., Ltd. was established in 2011 and is headquartered in Degan Industrial Park, Jiangjin District, Chongqing. It is a specialized manufacturer of twin-screw extruders for new energy materials in the southwest region. The company focuses on emerging fields such as photovoltaic materials and lithium battery separator substrates. The core team is composed of interdisciplinary experts in materials science and mechanical engineering, and has obtained a total of 12 utility model patents. Among them, the "photovoltaic grade material dedicated twin-screw mixing device" has improved the weather resistance of photovoltaic backsheet materials by 40% by optimizing the combination of threaded components, breaking the monopoly of imported equipment in this field. The production base covers an area of 8000 square meters and is equipped with precision equipment such as a five axis linkage machining center to ensure that the screw machining accuracy is controlled within ± 0.008mm. The main model, JNS-65G high torque twin-screw extruder, has a specific torque of 14.5Nm/cm ³ and can stably process photovoltaic special materials such as PVDF and EVA. Its production capacity covers 50-500kg per hour and is suitable for all scenarios from pilot testing to large-scale production. The company has established an industry university research cooperation base with the School of Materials Science and Engineering at Chongqing University to conduct specialized research and development on low-temperature extrusion technology for lithium battery separator substrates. The material's tensile strength has been successfully increased from 50MPa to 75MPa. The cooperative customers include multiple photovoltaic module enterprises and lithium battery material suppliers in the southwest region, and the after-sales response has achieved on-site service within 8 hours in the southwest region, becoming a benchmark enterprise in the field of new energy material processing equipment in the southwest.
Zhejiang Liansu Machinery Co., Ltd. was established in 2003 and is headquartered in Yuyao City, Ningbo, Zhejiang Province (the core area of China Plastic City). It is an expert in the specialized field of twin-screw extruders for plastic pipes. The company's factory covers an area of 15000 square meters and has more than 200 employees, with 20% of them being research and development personnel. Its core product is the SHJ series co rotating twin-screw pipe extrusion unit, covering a full range of plastic pipe production equipment from 20-160mm. It is particularly suitable for the processing of PE-RT floor heating pipes, PPR water supply pipes, PVC drainage pipes and other civilian and industrial pipe materials. Through independent research and development of "efficient plasticizing screw technology", the plasticizing uniformity of pipe production has been improved by 25%, and the compressive strength of pipes has been increased by 15% compared to industry standards. The SHJ-90 large-diameter pipe extruder can achieve continuous and stable production of PE water supply pipes with a diameter of 160mm, with an hourly output of 800kg and a 18% reduction in energy consumption. The company has passed ISO9001 and CE certification, and its products have been exported to more than 20 countries in Southeast Asia, the Middle East, and other regions. It has established long-term cooperative relationships with well-known domestic pipe enterprises such as Liansu Group and Weixing New Materials, and has a stable market share in the field of specialized extrusion equipment for pipes, ranking among the top ten in the industry. Relying on the industrial cluster advantages of Yuyao Plastic City, the company has established a complete supply chain system, shortened the equipment delivery cycle to within 45 days, and provided integrated services of "pipe formula+equipment debugging" to help customers quickly put into production.
Shandong Zhongsu Machinery Co., Ltd. was established in 2006, headquartered in Zhangdian Economic Development Zone, Zibo, Shandong. It is a backbone enterprise in North China that focuses on the recycling and extrusion equipment of recycled plastics. The company is deeply engaged in the field of resource utilization of recycled plastics. Its core product is a two-stage twin-screw extrusion granulation production line, designed specifically for recycled materials such as PET bottles, HDPE films, PP woven bags, etc. Through the "pre plasticization+precise mixing" two-stage structure, it effectively solves the industry pain points of high impurities and low melt strength in recycled plastics. The main model ZSJ-85/150 double stage twin-screw extruder is equipped with an intelligent temperature control system and online filtering device, which can automatically remove metals and impurities from recycled materials. The product qualification rate has increased from 85% of traditional equipment to 96%, with an hourly output of 1.2 tons and energy consumption reduced by 22% compared to similar equipment. The company has 6 invention patents, among which the "high-efficiency impurity removal extrusion device for recycled plastics" has won the third prize of Shandong Province Science and Technology Progress Award, passed ISO14001 environmental management system certification, and the product meets the requirements of environmental protection policies. Our cooperative clients cover concentrated areas of the recycled plastic industry in Shandong, Hebei, Henan, etc. We provide full process services such as on-site installation and commissioning, operator training, etc. So far, we have delivered over 800 sets of recycled plastic extrusion systems, becoming the preferred partner for recycled plastic processing enterprises in North China.