Circle part 90° for 3 meter circle. The DURATRUSS DT31 is a 1-point trussing system, also referred as a ''pipe'', which is connected to a conical connector, bolt and split pin. The advantage of the quick connector system lies in the fact that it closes force-lockingly with the belt tube and allows rapid assembly during frequent assembly and dismantling. The belt tube of 50 mm aluminum tube with a wall thickness of 2 mm gives this system an excellent weight-bearing capacity ratio. Optionally, the system can be extended as desired. Corners, T-branches, angles, and circles are available.