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 30 Swing check-valves, of cast iron, with an inlet of internal diameter of 4 cm or more 84 81 30 10 Swing check-valves, of cast iron, with an inlet of internal diameter of 4 cm or more Commodity Code Description 84 81 30 10 00 Swing check-valves, of cast iron, with an inlet of internal diameter of 4 cm or more
