... .0mmVice tube50*2.0mmDiagonal Tube32*2.0mm*AVAILABLE SHAPE ALUMINUM ROOF OF ROOF TRUSSSquare ,rectangle, triangle, layer, circle, arch, flat ... use in many situation*WIDE APPLICATION WITH THE ALUMINUM ROOF TRUSSPerformance stage, outdoor and indoor concert, exhibit and display ... the base facility, and excellent designer to perfect the truss system.4).OEM, reasonable price , best after-sale serviceWe ...