Dongguan Precision OEM Metal Parts Reasonable price OEM service Prompt delivery time Certification: ISO9001:2008 Dongguan Precision OEM Metal Parts MaterialCarbon steel; Stainless steel, aluminum alloy ... ; Gray iron; Ductile iron; Malleable iron; Tungsten steel, etc.Machining processesMetal fabrication, machining, welding, forming, shaping, punching, drilling, turning, milling, grinding, chip ...