... service Prompt delivery time Certification: ISO9001:2008 Dongguan Precision OEM Metal Parts MaterialCarbon steel; Stainless steel, aluminum alloy; Brass alloy ... shaping, punching, drilling, turning, milling, grinding, chip formatting, rolling, stamping, deep drawing, bending, spot or seam welding, spinning, forging, ... welding/ assembly workshop The company travel Dongguan Precision OEM Metal Parts