... ,increasing a protective barrier. 3) The surface of multi-layer plating processes,resistant to corrosion and durable 4) ... ,DIN-1,NAK80,KD-61,ect4.Cavity QuantitySingle/Multi-cavity5.Plastic Part MaterialPA,POM,ABS,PP,PC, ... ,increasing a protective barrier. 3) The surface of multi-layer plating processes,resistant to corrosion and durable 4) ... fit our customers’ requirements Single Function shower head