7 Actuators; machine elements, not for land vehicles; shafts, axles or spindles, machine elements other than land vehicles; bearings, machine elements not for land vehicles; shafts, couplings or connectors, machine elements not for land vehicles; power transmissions and gearing, machine elements not for land vehicles; shock absorbers, machine elements not for land vehicles; springs, machine elements not for land vehicles; brakes, machine elements not for land vehicles; valves, machine elements not for land vehicles