... , cold rolled sheet, bearing steel, brass, copper, bronze, chrome copper, mold steel ,and so onSurface treatmenthardening, carburizing, high frequency, anodizing, clear ... (AUTO CAD will be better) or samples. Processing MethodTurning, Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting, Welding, Threading, Grinding ...