Big event tent party tent for sale Guarantee: Frame 5years, fabric 3 years. Wind loading: 100km/h. Snow loading: 0.5 kn/sqm 20X50M Big event tent detailed structure StructureAluminum profile high pressed extrued aluminum alloy 6061-T6, 200X110X4mm for 20~22m width 250x110x4mm for 23m~27m width,250x110x5mm for28m~30m width.Steel partshot-dipped galvanized , Passed 144 hour of salt spraying test ...