Square truss size: Bolt square truss : 300x300x (1000~4000mm) / 400x400x(1000~4000mm) / 450x450x(1000~4000mm) / 450x600x(1000~4000mm) / 520x760x(1000~4000mm) / 520x1000x(1000mm~4000mm) Spigot square truss : 290x290x(1000~4000mm) / 390x390x (1000~4000mm) Size can be customized according to the customer's requirements. Main tube used 50x2 / 50x3 / 50x4mm, Brace tube used 20x2 / 30x2 , 6061 T6 high quality Aluminum. Order carton.
