Zhoushan Vanscrew Machinery Co., Ltd. is located in Zhoushan City , the base of the screw barrel manufacturers. About 70% screw barrels are produced in zhoushan . Our company is a professional screw barrel manufacturer in china . After decade developing , we can produce series of screw barrels for injection molding machine , extruder , rubber machine and so on . We have our manage department , design department , sale department , stock department , produce department and so on . We can design screw barrels according to your raw materials and products . Also we can produce according to your drawing . Our designers have more than20 years screw barrel design experience , and our workers have more than ten years produce experience . Its insure our professional design and high quality products . As we have our produce factory .we can insure the products in quality and low price. Due to high quality steel 38CrMoAlA , all the products are in high quality after the treatment of structural improvement, nitrided , grinding and polishing. We can produce series screw barrels as : single extruder screw barrel , conical twin screw barrels , parallel twin screw barrels , screw barrel for injection molding machine , rubber machine screw barrel , bimetallic screw barrel , full hardness screw barrels and so on . In addition to providing screw barrel for many famous plastic machinery company . We also undertake businesses of sample processing and designing , surveying , mapping and producing for variety of customers. We all believe that quality is the company&＃039;s life , and service is the most important for company . We will provide high quality screw barrels and best service . We are in pursuit of the customers&＃039; requirements . Our aim is : every screw barrel we produce is perfect product . The best screw barrel , producing by VANSCREW !