... screws and so on.There is all kinds of size of our products.And our products ... us,please contact with me. This is the information of the product: 1.Color plating:environmental nickel ... steel, nickel plating, chrome plating, phosphating, polishing, the surface hardening, carburizing and quenching, sand blast, oxidation ... have any design of the metal parts, please inform us, we can make the counter sample ...