... 1.Material:SKD11,SKD61 2.Designed for plastic WPC SKDsereries screw barrel for plastic wpc made in china Conical Twin Screw Barrel and ... coating spraying, heat-treatment Appliance: PVC, PP, PE, PA, PC, ABS, AS etc Depth of Nitrated Layer: 0.40-0.70mm ... high Calcium Profile,soft PVC sheet, PVCfoaming boardetc.PP,PE,ABS,PVC,raw material pelletzing,plastic pipe,plastic profile,and plastic sheet etc.