... a Chinese manufacturer specialized in OEM ,Die casting,Plastic injection, CNC,Stamping and stamping mould. Our ... ) material: can be steel, brass, stainless steel, plastic, Aluminium…2) surface treatment:kinds of plating (Zinc, ... Nikel, Chrome, Tin, Ag); Painting, Powder, Anodizing, E-coating, Silkscreen, ... to customer's requirement screw with plastic head