how do you hang the lighting truss indoor on the ceiling?

The role of trusses is not only limited to some outdoor activity lighting racks and activity greenhouses, but also has a very big role in indoors, such as lighting racks in large gymnasiums, wedding racks, etc. So what is the indoor hanging truss used for? 

The indoor hanging truss can be hung by wire rope, and one end of the wire rope can be fixed on the beam of the building or other high objects, but it must be able to bear the weight of the truss, and there must be sufficient conditions to fix the wire rope on this object, It is more common to drive expansion screws into the building wall, and then use the screws to hang wire ropes for fixing.

If there are column-shaped beams inside the building, it is easier to directly tie the wire ropes to the beams. 

In addition, the indoor hanging truss can also use the in-wall truss, drive a certain number of screws into the wall and then install a wall fixing seat to replace the column of the truss system.