Our company is an over 30-year-old factory in Zhoushan (China) with ISO 9001:2008 certificated, manufacturing screws, barrels for injection and extrusion processing. And our products are processed by vacuum sintering cladding technologywe are the first and unique Chinese factory applying this technology to barrel and screw production since 2009!) In order to provide our client with the highest quality products, our Ni-based self-melting alloy powder is imported from American Wall Colmonoy Corporation; other raw materials are imported from Germany, Austria, Sweden, Switzerland and Japan. Our screws and the barrels are suitable for several kind of material, such as halogen-free material, high fiber material, ceramic, powder alloy, magnetic material, high corrosive material, high temperature material, thermosetting material, liquid material, high abrasion materials and many more.