Angle valves being parts of machines; Pressure regulators being parts of machines; Pneumatic air preparation equipment, namely, airline filters, lubricators, and regulators, all being parts of machines; Back pressure valves as parts of machines; Proportional flow valves as parts of machines; Compressed air machine components, namely, cylinders, valves and air grips; Bearings, as parts of machines; 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; Valves being engine parts for introducing fuel-air mixtures into the combustion chambers of internal combustion engines; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; Metal valves used in cleaning machines for gas turbine and combustion engines; Thermostatic control valves for machines; Valves as machine components; Valves being parts of machines; Fluid power component kit for machine control comprising pumps and valves; Ball valves being parts of machines; Regulators being parts of machines; Pump control valves; Emission reduction units for motors and engines, namely, PCV valves; Pressure switches as parts of machines