7 [ Cutter loaders, oil well pumping machines, rock drills, well drilling machines, drilling and boring machines, truck mills; ] earth moving equipment, namely, loaders, unloaders, wheel loaders, graders, scrapers; truck cranes, power shovels, dozer shovels being machines, [ earth augers, pile drivers, pile extractors, grouting pumps, ] bulldozers, rollers, namely, road roller machines; [ concrete placing machines, concrete vibrators, concrete paving machines, concrete mixers, asphalt finishers, asphalt mixers, dredging machines, ] pipe-laying machines; [ cable cranes, jib cranes, derricks, overhead travelling cranes, tower cranes, bridge cranes, floating cranes, locomotive cranes, pneumatic conveyors, hydraulic conveyors, screw conveyors, chain conveyors, bucket elevators, belt conveyors, roller conveyors, winches, windlasses, capstans, hoists; chainsaws; ] internal combustion engines, [ steam engines, jet engines, and turbines, not for land vehicles; water wheels, windmills; pumps, vacuum pumps, blowers, and compressors for machines; crude vegetable fiber preparation machines, feed compressors, feed cutters, feed mixers, feed mills; ] starters, alternating current motors and direct current motors not for use with land vehicles, alternating current generators, direct current generators; [ vehicle washing machines; waste compressors and waste crushers; ] machine parts, namely, shafts, bearings, shaft couplings, mechanical power transmissions, springs, dampers, and valves; stands for hydraulic jacks