1. 20m big circus tent 2. with tempered glass walls 3. used party, wedding, ceremony 4. single unit or as end of 20m tent 1, Attached photo shows a tent erected in Mexico, 20m width big tent with 2pcs 1/2 20m Decagonal tent as ends, which is used for a party, stand along the lake, make the tent looks very elegant and beautiful.2, The clear-span width of BT20 is 20m, the length of BT20 could be ...