Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 33 Harvesting or threshing machinery, including straw or fodder balers; grass or hay mow 84 33 20 Other mowers, including cutter bars for tractor mounting 84 33 20 00 Other mowers, including cutter bars for tractor mounting Commodity Code Description 84 33 20 00 00 Other mowers, including cutter bars for tractor mounting