To each other, these profiles are mounted with self -tapping screws, and then the resulting frame structure is mounted directly to the ceiling using special suspensions, which, in turn, make it possible to adjust the height and position of the structure in the plane. As for multi -level ceilings with curly elements, their installation is made much longer. Indeed, in this case, it is necessary to thoroughly think over the configuration of the frame base, install the aligning (first) ceiling and cut out unusual figures from the GCL sheets, which are provided in the design.