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 15 Air conditioning machines, comprising a motor-driven fan and elements for changing th 84 15 90 Of a kind used in aircraft or railway rolling stock 84 15 90 24 Of a kind used in aircraft or railway rolling stock Commodity Code Description 84 15 90 24 00 Of a kind used in aircraft or railway rolling stock