Jinsheng Bimetallic Plastic Machinery Factory was established in 2004. It was developed as a large-scale and comprehensive company specializing in manufacturing the kinds of Screws and Barrels in Zhoushan.such as bimetallic barrel & screw 、conical twin screws & barrels 、parallel twin screws & barrels、single screw &barrel 、 rubber screw & barrel 、planetary screw & barrel and  components apply for injection molding machine and extruder machine .For the material of screw and barrel  we usually used: #45 steel,40Cr,38CRMOALA, 42CrMo,SKD11,SKD61 and high temperture ALLOY etc. Jinsheng team aim at providing the best services to customers which include providing short lead time, best price and best after sales services. These allow us to create good relationship with customer. Moreover, our engineering department can design special screw and barrel design for some special plastic material such as HDPE, LDPE.