... , alloy steel, stainless steel, cast iron, brass, aluminum and etc3.All we can make.4.Packaging: 1pcs/box,15kg ... /carton5.Treatment: surface quenching by high frequency induction or nitrogen treatment, carburizing hardened.6.Process: stamping, deep drawing, welding ... , sheet metal fabrication, and metal assembly.7.Finish: Chromic/Nickel plated or e-coated ...