... , carbon steel, spring steel,iron, , brass ,aluminum,2. Applied software for specification drawings:Pro/E, Auto CAD, Solid Work 2001, CAXA ... , dichromate plating,copper wiredrawing.We are particularly well-known for many different kinds of production of stamping,welding parts,turning ... custom orders, we have been specializing in this line for years.If you are interested in our factory,please feel ...