Concert truss is a product that is used in many industries because it is very stable, and with the continuous development of society, recreational activities are becoming more and more widespread. The product itself reflects the superiority everywhere, and its own variety is very much.For many temporary stage set up, in fact, is very time-consuming and labor-intensive. But with Concert truss in the middle of the support, it can save a lot of time, can effectively improve everyone's rehearsa…