... alloy2.Finishing: color anodized, Bright zinc plated, plating of Nickel,silver,copper, zinc .etc. and anodized ,powder coated, polished ... parts4.Surface treatment: polishing,zinc plating,gold plating,nickel plating or chrome plating,anodizing and painting. Ferrous ... .All kinds of surface treatments: polishing, zinc plating, nickel plating, chrome plating, powder coating, phosphate coating Brass ...