| 4110 |
Realization of building projects related to erection of buildings |
| 4120 |
Building works related to erection of residential and non-residential buildings |
| 4211 |
Works related to construction of roads and motorways |
| 4212 |
Works related to construction of railways and underground railways |
| 4213 |
Works related to construction of bridges and tunnels |
| 4221 |
Works related to construction of transmission pipelines and distribution networks |
| 4222 |
Works related to construction of telecommunications and electricity lines |
| 4291 |
Works related to construction of water projects |
| 4299 |
Works related to construction of other civil engineering projects not elsewhere classified |
| 4311 |
Demolition |
| 4312 |
Site preparation |
| 4313 |
Test drilling and boring |
| 4321 |
Electrical installation |
| 4322 |
Plumbing, heat and air-conditioning installation |
| 4329 |
Other construction installation |
| 4331 |
Plastering |
| 4332 |
Joinery installation |
| 4333 |
Floor and wall covering |
| 4334 |
Painting and glazing |
| 4339 |
Other building completion and finishing |
| 4391 |
Roofing activities |
| 4399 |
Other specialised construction activities not elsewhere classified |