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 81 Taps, cocks, valves and similar appliances for pipes, boiler shells... 84 81 80 Of plastics and of not less than 1 cm and not more than 2.5 cm in internal diameter 84 81 80 78 Of plastics and of not less than 1 cm and not more than 2.5 cm in internal diameter Commodity Code Description 84 81 80 78 00 Of plastics and of not less than 1 cm and not more than 2.5 cm in internal diameter