Ventanas. Resistencia a la torsión estática.
Windows - Determination of the resistance to static torsion
Fenêtres - Détermination de la résistance à la torsion statique
Buy on AENOR
91.060.50 / Doors and windows
CTN 85 - Closure of frames in building and related products
Corrects: UNE-EN 14609:2004
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