2025-02-14T21:03:12.495+01:00
- Section F : Construction
- Division 42 : Civil engineering
- Group 42.1 : Construction of roads and railways
- Class 42.13 : Construction of bridges and tunnels
Sub-class 42.13B : Construction and maintenance of tunnels
Nomenclatures
Last updated on: 02/14/2025
This sub-class includes
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la construction de tunnels routiers, ferroviaires et autres