1, aluminium die casting parts 2, ISO certificated 3, High quality controlled 4, Secondary process available aluminium die casting parts About usYaopeng was founded in 2005 as ... 1) Material: Steel, Brass, Copper, Stainless steel, , Aluminium2) Surface treatment:Zinc plating, Anodization, Chemical fim, Powder, Passivation, Sand blasting, Brushing & ploshing ...