... , 6engineering technicians, including 3senior professor engineersOUR STAMPING(1) Material: stainlesssheet metal part steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, brass ... : stamping, deep drawing , spot or seam welding, spinning, metal assembly are available.sheet metal part (3) Surface finish : coating-plating, Zinc plating, enamel ...