... delivery time Certification: ISO9001:2008 Dongguan Precision OEM Metal Parts MaterialCarbon steel; Stainless steel, aluminum alloy ... ; Ductile iron; Malleable iron; Tungsten steel, etc.Machining processesMetal fabrication, machining, welding, forming, shaping, punching, drilling, turning ... plating, decrement plating, etc.Machinery and equipmentsCNC machining center; CNC lathe; Normal lathe; CNC milling ...