... , flame retardant to DIN 4102 B1, M2, water proof and UV retardant, roof cover is 850g/ sqm and absolutely opaque, side ... high quality at waterproof, flame retardant to DIN4102 B1, M2, UV resistant. 3.Length can be extended by 5m.4.The span ... tent, wedding tent, festival tent, corporate event tent, warehouse tent, garden tent , industrial tent, pagoda tent, trade show tent, commercial tent ...