| 发明名称 |
PRECAST BEAM FOR REINFORCED CONCRETE OR MIXED STRUCTURES FOR CIVIL OR INDUSTRIAL USES FORMED BY A ROUND OR SQUARE OR COMPOUND IRON SCAFFOLDING WELDED IN AND WITH VIBRATED CONCRETE LOWER SLAB CARRYING OUT AS A WHOLE A SELF-BEARINGSTRUCTURE BEING SUITABLE FOR THE EXECUTION OF ANY KIND OF FLOOR AND FOR ANY HEIGHT AND CAPACITY |
