... span: 15m, 18m, 20m, 25m, 30m This is a newly-designed tent. It’s much safer than traditional style due to ... . SPECIFICATION1) Span width: 15m, 18m, 20m, 25m, 30m.2) Length: no limite, extended by +5m.3) Bay distance: 5m4) Eave height ... fabric is from 660g/sq.m to 850g/sq.m. new designed tent of curved marquee