Machine shop services, namely, machining parts for others; prototype fabrication of new products for others; 3D printing; manufacture of prototype molds and models to the order and specification of others; custom manufacture of molds for use in industry; custom moulding of synthetic parts for others; parts molding; molding of plastic materials; three-dimensional surface printing; surface finishing of wood, metal including silver, gold, iron, aluminum alloy, nickel alloy, titanium alloy, cobal...