... storey adding projects. e.g. adding storey to small steel structure industrial factory building, warehouse, subburban temporary office, ... of the panel30-200mmMaterial Of Top/Back SheetCorrugated Color Steel Sheet(0. 326mm,0.376mm,0.426mm,0.5mm, ... warehouses, factories, exhibition halls, prefabricated houses, container houses, steel structure insulation material, and other industrial and civil buildings. ...