... alloy 3.used for outdoor event == Specifications ==The big roof top tent is widely used for party, outdoor wedding, outdoor exhibition ... be 20m, 25m, 30m and +5m more. 2, Frame uses hard pressed extruded aluminium 6061/T6(13HW). 3, The fabric is ... optional accessories are wooden floor, glass door, glass wall, ABS hard wall, ground anchors, sidewalls with PVC-clear windows, rain gutters ...