6 — Crude and manufactured minerals, building materials
| Code | Description |
|---|---|
| 61 | Sand, gravel, clay and slag |
| 62 | Salt, iron pyrites, sulphur |
| 63 | Other stone earths and minerals |
| 64 | Cement, lime |
| 65 | Plasters |
| 69 | Other manufactured building materials |
| Code | Description |
|---|---|
| 61 | Sand, gravel, clay and slag |
| 62 | Salt, iron pyrites, sulphur |
| 63 | Other stone earths and minerals |
| 64 | Cement, lime |
| 65 | Plasters |
| 69 | Other manufactured building materials |