NF P21-206*NF DTU 31.4:2020
Building works - Timber frame facade - Part 1-1 : contract bill of technical model clauses - Part 1-2 : general criteria for choice of materials - Part 2 : contract bill of special administrative model clauses

Standard No.

NF P21-206*NF DTU 31.4:2020

Release Date

2020

Published By

Association Francaise de Normalisation