Spread Profit surface treatment has a number of rack plating, barrel plating, anodizing, liquid/powder painting production lines. Various materials can be plated with copper [Cu], nickel [Ni], zinc [Zn], gold [Au], silver [Ag], tin [Sn], chromium [Cr], Oven coating (liquid/powder), aluminum alloy anodizing and other surface treatment processes, applicable materials: copper, iron, stainless steel, aluminum alloy, zinc alloy. The thickness varies from 1um to 150um due to the process.