... 1.material including iron,steel, stainless steel,copper,aluminum etc 2.accurate in reading drawings steel punched parts1, We are specilize in ... according to your drawing or prototype. 3, Surface treatment: Plating, powder coating, anodize, E-coating 4. Making process: Punching, grinding, ... wire cutting, welding, tapping, riveting, etc. 5, Meterial: Aluminum, stainless steel, copper, iron...