Zhoushan Sanzhong Plastic Machinery Co., Ltd. is located in Dinghai, Zhoushan. It is a professional manufacturer of various injection molding machines, extruders, chemical fiber machines, glue melting machines, rubber machine barrel screws and their accessories. The products are made of high-quality nitrided steel (38CrMoAlA), refined by quenching and tempering, molding, qualitative, nitriding (or spray welding double alloy), fine grinding, polishing and other processes. At the same time, the company also has a complete set of quality management system to ensure that there is no worry after the use of products. Our products are all over the country, and the product quality has been recognized by many famous domestic plastic machine manufacturers. In the fierce market competition, we make continuous efforts and enterprising spirit. Strive to the latest concept and advanced technol...