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SUPPORT OF SPAN ROOFS FROM TRELLISWORK SUPPORTING POLYGONS RESPECTIVELY FROM ROOF MAIN SUPPORTS, WITH COUPLE ROOF BUILT-TOGETHER IN SITU INTO THE THREE-ARTICULATION, TIE-SUPPORTING STRUCTURAL SYSTEM
SUPPORT OF SPAN ROOFS FROM TRELLISWORK SUPPORTING POLYGONS RESPECTIVELY FROM ROOF MAIN SUPPORTS, WITH COUPLE ROOF BUILT-TOGETHER IN SITU INTO THE THREE-ARTICULATION, TIE-SUPPORTING STRUCTURAL SYSTEM