... , Aluminium4Usage: car accessory,components for furniture, industry,machine auto, machiningmetal craft 4Partner:Chang he car company5 auto ... , including 3senior professor engineersOUR STAMPING(1) Material: stainlessmetal craft steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum ... or seam welding, spinning, metal assembly are available.metal craft (3) Surface finish : coating-plating, Zinc plating ...