There is standard size as 300*300mm Ladder truss ,Triangular truss, Square truss, The length can be 0.5-5m. It can be made of 50mm*2mm as inside tube.

 The trussess connectec by the spigot or hinge, because of some multipurpose accessories are widely used in the indoor or outdoor Such as exhibition hall and hotel. Fast and conveniently hang the light and equipment.

SPIGOTS-BOLTS OF TRUSS,it can be connected with both of turss and bolts .It has 300*300mm and 400*400mm.It can be connectec with both spigots and bolts . It can be ,ade of 50mm*30mm as main tube and 25mm82mm as inside tube.

The light duty of Ladder truss, triangular truss, square truss have standard size as 210*210mm,300*300mm,The medium-duty truss have 400*400mm,450*450