... SACM645,SKD61,GH113 Plastic extruder screw and barrel for plastic scrap screw barrel Conical Twin Screw Barrel and Plastic Extruder Machine ... Technology: Nitriding treatment, alloy coating spraying, heat-treatment Appliance: PVC, PP, PE, PA, PC, ABS, AS etc Depth of Nitrated ... quenching scope of application : PVCwood-plastic., PE wood-plastic,,Super high polymer board,1/2 high Calcium buckle,50-400 ...