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... machinery; grass/hay mowers; machines for produce, etc 84 33 51 Combine harvester-threshers 84 33 51 00 Combine harvester-threshers Commodity Code Description 84 33 51 00 000 Combine harvester-threshers