A building has a fire-protection false ceiling resting between ceiling beams. The ceiling panels are secured a rectangular group of inwards-directed U- or C-shaped profiles (15) forming frames around fire retardant panels (58).
◆ GB/T 9978-5 Fire-resistance test-Elements of building construction- Part 5:Specific requirements forloadbearing horizontal separating elements ◆ GB/T 9978-6 Fire-resistance test-Elements of building construction- Part 6: Specific requirements forbeams ◆ GB/T 9978-8 Fire-resistance test-Element...
A welder wearing a protective helmet and fire retardant clothing working on steel beams tuning a car ID: 49221163 收藏 加入清单 下载版权Maxim Kalmykov TIFF大小 36.4MB 格式JPG 以图搜图 大图:4368× 2912 像素·36.98 cm × 24.65 cm·300dpi·JPG 中图:1000× 667 像素·35.28 cm × 23.53 cm·72...
A building has a fire-protection false ceiling resting between ceiling beams. The ceiling panels are secured a rectangular group of inwards-directed U- or C-shaped profiles (15) forming frames around fire retardant panels (58).Knauf Gips KG...
A welder wearing a protective helmet and fire retardant clothing working on steel beams tuning a car ID: 49284601 收藏 加入清单 下载版权Maxim Kalmykov TIFF大小 36.4MB 格式JPG 编辑图片 以图搜图 大图:2912× 4368 像素·24.65 cm × 36.98 cm·300dpi·JPG 中图:667× 1000 像素·23.53 cm × ...