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 79 Machines and mechanical appliances having individual functions, not specified or included elsewhere in this Chapter. 84 79 71 Of a kind used in airports Commodity Code Description 84 79 71 00 Of a kind used in airports