| 84 | Reactors nuclear, boilers, equipment and mechanical devices; their parts |
| 8481 | Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, reducing valves and thermostatically controlled valves |
| 848180 | Other fixtures for pipes, boiler shells, tanks, vats or the like |
| 84818073 | Other accessories: stop valves steel |
| 8481807399 | Other valves valves steel, other |