... :aluminum, mild steel, stainless steel, chrome steel, cold rolled sheet, bearing steel, brass, copper, bronze, chrome copper, mold steel ... arcylic and so on.3.Surface treatment:hardening, carburizing, high frequency, anodizing, clear anodizing,black anodizing ,chrome plating, black ... painting and so on.4.Quality assurance :in accordance with your request5.main markets: Japan,Italy,Australia,UK,USA ...