| Código | Descripción |
|---|---|
| 4211 | Construction of roads and motorways |
| 4212 | Construction of railways and underground railways |
| 4213 | Construction of bridges and tunnels |
| Código | Descripción |
|---|---|
| 421 | Construcció de carreteres, vies fèrries, ponts i túnels |
| Código | Descripción |
|---|---|
| 4211 | Construction of roads and motorways |
| 4212 | Construction of railways and underground railways |
| 4213 | Construction of bridges and tunnels |
| Código | Descripción |
|---|---|
| 421 | Construcció de carreteres, vies fèrries, ponts i túnels |