... steel, Tungsten Steel, Brass,Plastic and Bakelite2) Surface Treatment: Zinc/nickel/chrome plating,hot galvanized, painting, powder coating, anodize and polishing3) Provide ... ) Surface Treatment: High quality polish, powder coating, Chrome/Nickel/Zinc(white, blue, yellow, black)plating, hot galvanized, painting, Anodize, electrophoresis, sandblasting etc ...