Pneumatic and hydraulic machine parts, including cylinders, pressure control valves, flow control valves, directional control valves, proportional control valves, check valves and stack valves; hydraulic vane pumps; hydraulic vane motors; hydraulic piston pumps; hydraulic piston motors; hydraulic gear pumps; hydraulic gear motors; air line filters, air pressure regulators, air lubricators, pneumatic rotary actuators and pneumatic servo control valves for pneumatic equipment; hydraulic servo control valves for hydraulic equipment; pneumatic and hydraulic press machines