Fixed truss: one of the strongest trusses, with high reusability, the only drawback is high transportation cost. Products are divided into square tubes and round tubes. Folding truss: the biggest advantage is low transportation cost and poor reusability. Products are divided into square tubes and round tubes. Butterfly truss: one of the most artistic trusses, with peculiar and beautiful shape. Spherical joint truss: also known as spherical joint frame, it has beautiful appearance and good robustness, and is also the most expensive truss. I believe everyone is familiar with the stage truss. Whether in real life or on TV, we will often see gorgeous stage effects, which need it to support. In practical application, this truss not only needs to be able to build a stage, hang background cloth, audio-visual lighting and so on. But the most important thing is to ensure its firmness. We can see that there are many different styles and categories of stage trusses, the most common one is standard type, which is processed and shaped according to the relevant standards in the industry and then built. Simple structure and uncomplicated installation. There is also a portable truss. Obviously, this kind of truss is specially designed for small-scale stage, and its composition material is slightly thinner than the standard, so its bearing capacity is smaller than the standard, and it is only suitable for small-scale performance activities. There is also a super-strong, specially designed for some special large-scale stages. This kind of truss is the strongest of all trusses and has the largest bearing capacity. In addition to the above classification, stage trusses are sometimes classified according to their shapes, such as triangular trusses, trapezoidal trusses and polygonal trusses.