Profile: Zhoushan Jiadng Plastic Machinery Co., Ltd specializes in design and manufacture of precision screw cylinders. Our screw barrel can be used for materials like PP, PE, ABS, PET, PA, PMMA and all kinds of engineering plastics. We also water granulation type screw barrel, and design for film with new type efficiency. The screw barrel adopts the special compulsory feeding design system with efficiency and output. Our bimetallic barrel is for single screw extruder, which is a kind of barrel spray 2-5 mm thick alloy coat on the barrel inner wall which has corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to common nitrided barrel. Bimetal has more obvious advantages when processing special plastics to enhance the abrasion life, such as engineering plastics, fluoride plastics, and PPO. Our company use special alloy powders being sprayed and welded on the top of screw flights, and use different alloys and welding methods.