Custom design of hydraulic and pneumatic pumps, motors, valves, fuses, and manifolds for others for use in hydraulic systems for aircraft, ordinance vehicles, and off-road heavy equipment, but not including manually operated valves primarily of metal for use in water and sewage systems; pumps for industrial purposes, namely peristaltic metering pumps; peristaltic metering pumps for laboratory; or pumps for water recirculation in recreational spas and pools

Pressure transducers and transmitters that convert hydraulic or pneumatic pressure into analog electrical signals for monitoring and controlling hydraulic or pneumatic systems