... rubber raw materials, such as: PE, PP, PVC, PS, ABS, PA, POM, PC, PSV, PTFE, PR, UP, PEC ... heat-treatmentAppliance: PVC, PP, PE, PA, PC, ABS, AS etcDepth of Nitrated Layer: 0.5-0.8mmHardness of ... Injection Screw barrel is the major and most important part for plastic injection molding machines. It provides the ... of Screw Barrel : PE PP PVC ABS PS plastic injection molding machine screw and barrel