| 730711 | 730711 - Cast iron; cast fittings, of non-malleable cast iron |
| 730719 | 730719 - Iron or steel; cast fittings, other than of non-malleable cas |
| 730721 | 730721 - Steel, stainless; tube or pipe fittings, flanges, of stainles |
| 730722 | 730722 - Steel, stainless; tube or pipe fittings, threaded elbows, ben |
| 730723 | 730723 - Steel, stainless; tube or pipe fittings, butt welding fitting |
| 730729 | 730729 - Steel, stainless; tube or pipe fittings, n.e.c. in item no. 7 |
| 730791 | 730791 - Iron or steel; tube or pipe fittings, flanges, other than sta |
| 730792 | 730792 - Iron or steel; tube or pipe fittings, threaded elbows, bends |
| 730793 | 730793 - Iron or steel; tube or pipe fittings, butt welding fittings, |
| 730799 | 730799 - Iron or steel; tube or pipe fittings, n.e.c. in item no. 7307 |