7 Gas turbines, not for land vehicles; non-electric prime movers, namely, gas turbines, not for land vehicles; turbines, other than for land vehicles for power generation; electricity generators for power generation; turbines, other than for land vehicles, for use in combined heat and power (CHP) systems; generators of electricity for use in combined heat and power (CHP) systems; alternators; direct current (DC) generators; Motors, namely, alternating current (AC) motors and direct current (DC) motors and their parts and fittings, not including those for land vehicles; pneumatic and hydraulic machines and instruments, namely, hydraulic and pneumatic conveyors, door closers; starter motors; gas turbine engines, not for land vehicles; all the foregoing utilizing hydrogen energy