Ball valves being parts of machines; Oil filters for motors and engines; Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; Power saws; Spark plug ignition wires; Valves as machine components; Valves being parts of machines; Valves being parts of machines operated pneumatically and by air