... tent detailed structure StructureAluminum profile high pressed extrued aluminum alloy 6061-T6, 200X110X4mm for 20~22m width 250x110x4mm for 23m~27m width,250x110x5mm ... retardant M2 UV protection, and Rotproof. Translucence. (2) 5cm thickness of sandwitch solid wall, ABS Solidwall,Glass wall flame retardant,Heat ...