SPM

flow control products; namely, metal piping, metal manifolds, pipe fittings; namely, hammer unions and [ spanner unions, ] couplings, [ nipples, ] plugs and swages primarily of metal, and manually operated valves made primarily of metal and designed for use in the gas and oilfield industry

centrifugal pumps and machine parts; namely, plunger pumps both made of metal designed for use in the gas and oilfield industry and [ aerospace products; namely, landing gear for airplanes and ] parts therefor