材质图层 | Free Download
Hollow-core slab, ordinary concrete - 29.5 cm
Hollow-core slab, ordinary concrete - 29.5 cm (材质图层 | Free Download)
Hollow-core concrete slab composed of lightweight infill-blocks and ordinary concrete - 29.5 cm (1.5-2-6-(2+16)-2) - SOL03 - UNI/TR 11552
