Division 23
| SNI code | Activity |
|---|---|
| C | Manufacturing |
| 23 | Manufacture of other non-metallic mineral products |
| 23.1 | Manufacture of glass and glass products |
| 23.2 | Manufacture of refractory products |
| 23.3 | Manufacture of clay building materials |
| 23.4 | Manufacture of other porcelain and ceramic products |
| 23.5 | Manufacture of cement, lime and plaster |
| 23.6 | Manufacture of articles of concrete, cement and plaster |
| 23.7 | Cutting, shaping and finishing of stone |
| 23.9 | Manufacture of abrasive products and non-metallic mineral products n.e.c. |