7 Valves, namely, manual and actuated gate valves, ball valves, check valves, and fluid control valves, all made wholly or predominantly of metal, and all for use in machines; pump components, namely, flanges, fittings, piping, pump cases, and impellers; wellhead equipment, namely check valves, piping and gaskets; blow out preventers for oil wells; and replacement parts for all of the foregoing