| Code | Description |
|---|---|
| 2721 | Manufacture of cast iron tubes |
| 2722 | Manufacture of steel tubes |
| Code | Description |
|---|---|
| 271 | Manufacture of basic iron and steel |
Heading of aggregated item 4 grups industrials to which it belongs
1 Intermediate goods industries
Heading of aggregated item 5 grups industrials to which it belongs
2 Intermediate goods industries (except energy)