UNITED WESTERN ENTERPRISES INC Photochemical etching and machining of thin metal parts from aluminum, copper, nickel and stainless steel alloys in thicknesses ranging from 0.0003″ to 0.064″. In addition to etching, we provide in-house forming, laser welding, soldering, heat treating and plating. We are AS 9100 / ISO 9001 Certified and ITAR Registered.