... filter washer,increasing a protective barrier. 3) The surface of multi-layer plating processes,resistant to corrosion and durable 4) More fast ... ,NAK80,KD-61,ect4.Cavity QuantitySingle/Multi-cavity5.Plastic Part MaterialPA,POM,ABS,PP,PC,PET,PVC,Nylon,PE,HDPE,ect6.Mould ...