40 Custom manufacturing, processing and fabrication services in the fields of reactive metal and special alloy equipment and parts, reactive metal and special alloy stock, reactive metal and special alloy equipment and parts, namely metal parts such as plates, sheets and tubes; semi- fabricated metal parts, such as heads, dished ends, vessels and flanges, hear exchangers, pressure vessels, process equipment, tanks, columns, piping systems, rotating equipment such as fans and blowers, mechanical equipment such as pulp mill washers, centrifuges, pumps, mixers, and shafts, electrolytic devices such chlorine and chlorate anodes and cells and copper starter sheet cathodes, chemical tank trailers, tubular components for offshore and deep well oil and gas production, medical devices, and manipulator arms and frames