... Numerical Control (CNC) Any material that is commercially available in stock sizes. A wide variety of plastic and metal material ... ,PU and so on+/- 0.003" Metal prototypes Aluminum, Stainless Steel, Carbon Steel, 17-7 PH, Brass, Phosphor Bronze, Copper, Nickel ... About HC-Mold:HC-Mold is a professional manufacturer specializing in development, design, manufacture of rapid prototype, injection mould, ...