材质图层 | Free Download
Hollow-core concrete slab, ordinary concrete [375.0]
Hollow-core concrete slab, ordinary concrete [375.0] (材质图层 | Free Download)
Hollow-core concrete slab composed of lightweight infill-blocks and ordinary concrete - 37.5 cm (1.5-2-6-(2+24)-2) - SOL03 - UNI/TR 11552