... spigot truss 2012 tube 50*4.0 thickness aluminum spigot truss*MAIN INFORMATION OF THE ALUMINUM SPIGOT TRUSSItem No.ACE A2929Size290* ... *3.0mmVice tube50*2.0mmDiagonal Tube32*2.0mm*AVAILABLE SHAPE ALUMINUM SPIGOT TRUSSSquare ,rectangle, triangle, layer, circle, arch, ... .Wide use in many situation*WIDE APPLICATION WITH THE ALUMINUM SPIGOT TRUSSPerformance stage, outdoor and indoor concert, exhibit ...