7 Non-electric prime movers, not for land vehicles; Parts of non-electric prime movers, namely, internal combustion engine for machine operation replacement parts; Hydrogen engines, not for land vehicles; Machine elements, not for land vehicles, namely, coils, manifolds, particulate filters, casings, bearings, valves, combustion chambers, gear drives, mechanical seals, shafts, shaft couplings, fluid couplings; Shafts, axles and spindles, machine elements other than land vehicles; Bearings, machine elements not for land vehicles; Shafts, couplings and connectors, machine elements not for land vehicles; Power transmissions and gearing, machine elements not for land vehicles; Valves, machine elements not for land vehicles