... componens.3). Materials: Stainless steel, carbon steel, spring steel, aluminum, brass and so on4). High skilled workers, completely advanced equipment set5 ... : Material 301, 302, 303, 304, 304L, 316, 316L, iron, copper, aluminium, brass, C1045 etc.Surface TreatmentPolishing, Powder coating, Spraying, Anodising, Zinc Plating ...