OutdoorBig tent for events Alu. frame PVC cover Max span width 40m, lenght is unlimited Outdoor Big tent for exhibition eventHigh Reinforce Aluminum, anti-rust surface, GB6061-T6, 4 channelsDouble PVC-Coated Polyester, flame retardant, UV resistance, waterproof, comply to DIN 4102 B1, M2 ( European standard ), max wind speed allowance: 80km/hGround Fixed style :1> Expantion screws : Be used on ...