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 74 Machinery for sorting..., agglomerating... earth, stone, ores, etc 84 74 31 Concrete or mortar mixers 84 74 31 00 Concrete or mortar mixers Commodity Code Description 84 74 31 00 00 Concrete or mortar mixers