TANGFEI machinery manufacturer is a professional engaged in precision components: screw barrel of injection molding machine,extrusion machines.Available:Injection Machine Screw and Barrel, Parts;Extruder Machine Screw and Barrel;Rubber Machine Screw and Barrel;Parallel Twin Screw and Barrel;Conical Twin Screw and Barrel;Bimetallic Screw and Barrel;Stainless Steel screw;SKD61 Screw;Nitride Screw;High speed tool steel screw;Diamond Screw;Powder alloy steel screw;Heater Booster;Gearbox