... standard of workmanship 3.rich experience 4.OEM lather part- OEM Materialcarbon steel, stainless steel, steel tube ... , welding, casting, punching, machingSurfacepowder coating, zinc plated, nickel-chrome plated, painting, heat treatment and etcPackingpacked by carton, ... product all customer metal product, stamping part, deep drawing part, punching part, casting part. Weld wire mesh according to clients ...