... 4.Length:Unlimited Feature:1.Unit combination style structure,span is from 3 meters to 30 meters, ... durable,the tent material was adopted double stones.PVC synthetic fibre.3.It is easy to put ... %.Material:1.Frame:Aluminum alloy2.Fabric:Imported double PVC synthesis,efficient protection of fire againt fire,wind, ... .2.Trade Manager:cn220216750Mobile Phone:0086-15107624226 pvc fabric membrance structure