... tent experts ==competitive price ==implement military standard 1, The clear-span 20m2, The length of BT20 could be 20m, 25m 30m and ... , Frame uses hard pressed extruded aluminium 6061 /T6(13HW). 4, The fabric is double PVC-coated polyester textile. It is high ... . 8, Sizes available (the widths of the big tent): 12m, 15m, 18m, 20m, 25m, 30m, 40m, 50m, 60m. no limited space warehouse tent ...