71 — Architectural and engineering activities; technical testing and analysis
| Código | Descripción |
|---|---|
| 711 | Architectural and engineering activities and related technical consultancy |
| 712 | Technical testing and analysis |
| Código | Descripción |
|---|---|
| 71 | Serveis tècnics d'arquitectura i enginyeria; assajos i anàlisis tècnics |