goods made wholly or predominantly of metal, namely, cylinders and cylinder liners for compressed air and gases, hose couplings, manually operated valves, reservoir tanks, castings, and parts and fittings for the aforementioned goods

electric motors for machines, aircraft motors, motors, fans for machine engines, pumps being parts of machines, air turbine starters for motors and engines, couplings for machines, hydraulic power generators, hydraulic and pneumatic flow control manifold assemblies for machine engines, filters being parts of machines, electric generators, actuators, starters for motors and engines, valves being parts of machines, hydraulic turbines and compressors, power generators; dump valves, discharge valves, relief valves, and pneumatically actuated butterfly valves being parts of machines; aircraft engine bleed precoolers; cooling turbines, and parts and fittings for the aforementioned goods

jump starting apparatus for vehicle batteries; apparatus and instruments for testing gas composition, air composition, and/or fluid flow in pneumatic and hydraulic systems; automatic valves, solenoid valves, automatic aspirators for inflating life-saving rafts and dinghies, electrical controls for engines and motors, pressure control apparatus and instruments for cabin pressurization for aircraft; temperature control apparatus and instruments for cabin environmental control for aircraft and trains; metered pumps for system rig calibration; breathing gas regulators, oxygen masks not for medical use, liquid oxygen conversion and concentration apparatus, liquid and gaseous oxygen indicators and transmitters, gas pressure and manometer gauges, oxygen concentration and gas pressure monitors, accumulators, data recorders, digital pressure and temperature controllers, digital engine controllers, meter readers, digital micrometers, train speed monitors, incident recorders, de-icing apparatus, and testing apparatus for use on the aforementioned goods; computers, computer hardware; computer software for providing control systems for data recorders/monitors, oxygen control systems, and associated life support equipment for aviators; digital panel meters and automatic controllers; fuel tank pressurization apparatus namely; pressure gauges, pressure reducing valves, relief valves, instruments for use on aircraft, namely air temperature sensors, solenoids; and thermostats; ice detecting apparatus and instruments for use on aircraft, control apparatus for ventilating and air conditioning installation, control regulators for pressure control valves for cabin pressurization and air conditioning, time delay and cycles switches, pressure switches; altitude measuring, indicating and switching devices; pressure control valves, electrically actuated butterfly valves, test apparatus and instruments for monitoring the flow of oxygen, apparatus for testing pneumatic rigs, electrical sonar buoy releasing mechanisms; aircraft safety equipment, namely, emergency warning lights and alarms, and parts for the aforementioned goods

heat exchangers, portable electric fans, hydraulic system cooling composed of heat exchangers, fans, and by-pass valves for cooling aircraft hydraulic system fluid, sold as a unit; air filters for industrial installations, manually operated plumbing valves; aircraft heating units, aircraft refrigeration units, aircraft ventilation units, aircraft air conditioning units; humidifiers, dehumidifiers; liquid cycle and air cycle air conditioners, high pressure and low pressure separators for the cleaning and purification of water and gases; oil coolers, fuel heaters, hot water boilers, electric fans, parts and fittings for the aforementioned goods; environmental control systems composed of heat exchangers, cooling turbines, temperature control valves, pressure regulators and shut-off valves, water extractors, sold as a unit

Motors for land vehicles; sonar buoy releases and ejector releases, being structural parts of aircraft; trucks and cargo trailers for servicing aircraft on the ground; trucks and cargo trailers featuring external air conditioners and electrical and leakage testing apparatus; trolleys in the nature of train cars and structural parts for the aforementioned goods

maintenance and repair of environmental control systems and apparatus, cabin pressurization systems and apparatus, life support systems and apparatus, flight and data recorders