... the field of injection and extruder machine parts.Our main types of screw production are: "gradient type, mutant, ... kinds of rubber raw materials, such as: PE, PP, PVC, PS, ABS, PA, POM, PC, PSV, PTFE, PR, UP ... 0.03-0.08mmDepth of Bimetallic Layer: >2mmThe production of screw barrel type:1. injection screw barrel, ... of Screw Barrel : PE PP PVC ABS PS plastic injection molding machine screw and barrel