... .Features:1, The clear-span of BT20 is 20m.2, The length of BT20 could be 20m, 25m, ... /h. The security and variability of our products have reached the standard of similar products in Europe.6, ... , temporary warehouse and workshop.8, Sizes available (the width of the big tent): 12m, 15m, 18m, 20m, 21m, ... fix .3) If the ground (which is made of marble or tile) can't be damaged, loading system should ...