prefabricated space truss 1.high strength 2.fireproor& ... steel and alloy structural steel Special purpose steel4Wall & roof can be used by steel sheet, EPS sandwich ... environmental protection, etcAdvantages:1. Wide span: single span or multiple spans, the max span clear distance is 36m, without ... : Item Name steel structure warehouseSize Length,Width,Roof height and Eave HeightRoof and Wall PU,EPS ...