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SUPPORTING STRUCTURE MOUNTED FROM ROLLED SECTION STEEL SUPPORTING MEMBERS OF HOT-ROLLED I-SECTION PARTICULARLY FOR REINFORCING THE CEILINGS OF EXISTING BUILDINGS AND CEILING REINFORCING METHOD APPLICABLE IN GENERAL USE
SUPPORTING STRUCTURE MOUNTED FROM ROLLED SECTION STEEL SUPPORTING MEMBERS OF HOT-ROLLED I-SECTION PARTICULARLY FOR REINFORCING THE CEILINGS OF EXISTING BUILDINGS AND CEILING REINFORCING METHOD APPLICABLE IN GENERAL USE
