NF P31-201-1/A1

DTU 40-22. Building works. Roof-covering made from hollow terracotta tiles. Part 1 : technical specifications.

Le présent document présente les paragraphes 2.5 et 3.5 qui remplacent les paragraphes de même numérotation de la norme NF P 31-201-1 (Référence DTU 40.22), de mai 1993.

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