Using this system, the binding joist formation is possible, with the use of short sections of girders C20. As a connecting piece the closingly-straightening lock is used. The binding joist can be formed every1 cm, until the height of 90 cm. The formation lenghtwise is without gardation.

This system has many advantages. The low capital costs and the reduction of the formation time , bring about 50% of savings.

This system can be joined with any ceiling boarding.