... Production 3.Wear-resistant 4.Bimetallic & Nitrided abs,pvc,pp,pe,pa conical twin screw and ... heat-treatmentAppliance: PVC, PP, PE, PA, PC, ABS .etcDepth of Nitrated Layer: 0.5-0.7mmHardness of ... and barrel(Co-rotating,Counter)5. Twin Parallel screw and barrel Co-rotating,Counter)6. High wear Resistant ... main Measurement:The Reference Pictures of Screw Barrel abs,pvc,pp,pe,pa extruder machine twin screw ...