The big outdoor waterproof exhibtion tent,width from 3m-50m, and the length is unlimited. The frame is made of aluminum and the cover fabric is double coated PVC. There is no poles inside,the space can be 100% used. Size:1)Span Width: 3m,6m,8m,9m,10m,12m,15m,18m,20m,21m,25m,30m,40m.2)Length: not limited,extended by 3m and 5m.3)Eave height: from 2m to 10m,standard is 2.5m and 4m.Advantage:1.High ...