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 19 Non-domestic heating/cooling equipment, nes; non-electric water heaters 84 19 50 Heat exchange units Commodity Code Description 84 19 50 00 Heat exchange units 84 19 50 10 Cooling towers 84 19 50 20 Heat exchange units made of tubes of fluoropolymers, with both inlet and outl 84 19 50 91 Other : Electrically operated 84 19 50 92 Other : Not electrically operated
