... the vacuum exhaust type, combined type, work type, speed type, etc.," is widely used in all kinds ... of rubber raw materials, such as: PE, PP, PVC, PS, ABS, PA, POM, PC, PSV, PTFE, ... steelTechnology: nitriding treatment, alloy coating spraying, heat-treatmentAppliance: PVC, PP, PE, PA, PC, ABS, AS etcDepth ... Pictures of Screw Barrel : PE PP PVC ABS PS plastic injection molding machine screw and ...