... workmanship&high quality 3.rich experience 4.OEM OEM sheet metal hingeMaterialcarbon steel, stainless steel, steel tube, steel ... brass, zinc alloy and etc.Processstamping, bending, welding, casting, punching, machingSurfacepowder coating, zinc plated, nickel-chrome plated, painting, heat ... customer metal product, stamping part, deep drawing part, punching part, casting part.Weld wire mesh according to ...