... spraying, heat-treatment Appliance: PVC, PP, PE, PA, PC, ABS, AS etc Depth of Nitrated Layer: 0.40-0.70mm ... Spraying corrosion wear-resisting dual metal layers Vacuum quenching scope of application : PVCwood-plastic., PE wood-plastic,,Super high polymer board, ... Calcium Profile,soft PVC sheet, PVCfoaming boardetc.PP,PE,ABS,PVC,raw material pelletzing,plastic pipe,plastic profile,and plastic sheet etc.