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| CATEGORIE E CLASSIFICHE DI QUALIFICAZIONE | ||
| Categoria | Classifica | Opere |
| OG1 | VIII | Civil and industial building |
| OG2 | V | Restoration of property subject to protection |
| OG3 | II | Roads, highways, bridges, viaducts railways, subways |
| OG11 | IV-BIS | Plant Technology |
| OS3 | III | Plumbing, kitchens, laundries |
| OS23 | III-BIS | Demolition Works |
| OS25 | III | Archeological Excavations |
| OS28 | III-BIS | Plants heating and air conditioning |
| OS30 | IV | Electrical equipment, radio, and TV phone. |