... by the way of progressive stamping, and then do the surface finish. Application: auto, electric appliance (household), computer, furniture, industry, ... Materials: Iron, stainless steel, brass, copper, alloy steel, aluminum,etc.Surface finish:Polishing, Plating (Zinc, Nickel, Chrome,etc), Coating, painting.Making ... corner brace,metal angle bracket, sofa connector,sofa insert ,bed plate bracket