1, Small Truss: The common specifications of T-shaped trusses are 200mm× 200mm and 250mm× 250mm, which can be used for booth background frames and advertising background frames.

2. Medium-sized truss: The common specifications of medium-sized truss beams are 300mm× 300 mm, 350mm× 350 mm and 400mm× 400 mm, which are often used as stage lighting frames and sound frames.

3. Large Truss: Common specifications of large trusses are 450mm× 450 mm, 500mm× 500 mm, 600 mm× 760mm, etc. The average bearing capacity of this truss can reach 1000kg and the span can exceed 20 meters. It is often used as a large stage lighting frame, gantry frame, tent frame, etc.