7 machine parts other than land vehicles, namely, shafts, axles, and spindles; machine parts other than land vehicles, namely, bearings; machine parts not for land vehicles, namely, shaft couplings and connectors; machine parts not for land vehicles, namely, power transmissions and gearing; machine parts not for land vehicles, namely, shock absorbers; machine parts not for land vehicles, namely, springs; machine parts not for land vehicles, namely, brakes; machine parts not for land vehicles, namely, valves.