... washer,increasing a protective barrier. 3) The surface of multi-layer plating processes,resistant to corrosion and durable 4) More fast ... CR12,S50C,DIN-1,NAK80,KD-61,ect4.Cavity QuantitySingle/Multi-cavity5.Plastic Part MaterialABS,TPR6.Mould Life TimeAs perFeature: ... washer,increasing a protective barrier. 3) The surface of multi-layer plating processes,resistant to corrosion and durable 4) More fast ...