Descendentes
Esta rúbrica no tiene descendentes porque pertenece al nivel más detallado de la clasificación.
| Código | Descripción |
|---|---|
| 1411 | Quarrying of stone for construction |
| 1412 | Quarrying of limestone, gypsum and chalk |
| 1413 | Quarrying of slate |
| 1421 | Operation of gravel and sand pits |
| 1422 | Mining of clays and kaolin |
| Código | Descripción |
|---|---|
| 2901 | Stone quarrying, clay and sand pits |
| 2909 | Mining and quarrying not elsewhere classified |