... .Aluminum 6082,lightweight,heavyLoad 4.Main tube 3mm thickness Products informationMaterial:Aliminum 6082Main Tube:50*3mmBraces:25*2mmSpan:20MLoad Capacity: ... and lights3.they can used for exhibition,performance,advertisemt,TV Show,outdoor celebration,Wedding Celibrate,performance,concert,events and ... 760mm it depends on the load2. Main tube:50*3mm,50*4mm3. Brace tube:25*2mm,30*2mm,30*3mm4. Connection ...