... ,30m(all aluminum) 3m,6m,10m,12m,15m,18m(steel and aluminum).2.length:according to customers'need.3.main material ... wedding, trade fair, celebration, sports event, military solution, temporary warehouse and workshop.5.The optional accessories are wooden floor, glass wall ... anchors, sidewalls with PVC-clear window, rain gutters, decoration ceilings and inside curtain. Expo Marquees