E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
Ensemble d'éléments pour la réalisation de parois aménageables pour la subdivision d'espaces à l'intérieur de bâtiments civils, commerciaux et industriels
Systeme de parement, ensemble de parement d'au moins deux systemes de parement superposes, et cloison, parement et cloture comprenant au moins un ensemble de parement