7 Centrifugal pumps, compressed air pumps, lubricant pumps, namely, oil pumps for use in motors and engines, rotary pumps, steam pumps, namely, steam ejector for handling liquids and steams for industrial purposes; vacuum pumps, pumps for fuels, namely, fuel pumps for land vehicles, all forming part of, and intended for use in engines; valves for regulating feed water, namely, control valves, valves for regulating pressure, namely, control pressure valves, and valves for regulating mixture, namely, three-way blending valves, all forming, part of, or intended for use with machines; metal valving, namely, check valves, and metal taps, namely, plug cock valves for pumps and machines, all of the foregoing being parts of machines; steam valves, namely, globe valves for steam gases, flood gates, namely, gate valves for use in transport of liquids and gases, pressure gates, namely, valve for pressure hydraulic circuits, reduction valves, namely, steam reduction valves, switchover valves, namely, check valves, rupture valves, namely, safety relief valves, and machinery valves, namely, valves being part of gas and air conditioning machines, all of the foregoing being parts of machines; Fans for motors and engines and machines, namely, fans for machine engines