428- unit Project of Yazd Mehr Housing was commenced in 19 blocks in a land measuring approximately 30,000 sq. m, in 2011.

Design system of the structure was in the form of wall and concrete slab, of which concrete should be poured in one stage and Technical Department of Boozarjomehr Industrial Group proposed the formwork system of form tunnel which was compatible with the project plan and mass- construction method, and was of the high rate capability of erection and gathering together, and therefore there was no need to a large number of human resources and skilled workers, finally the project implementation speed was increased.It is to be noted that, the simultaneous implementation of the electrical and mechanical installations at the time of concrete placing was another capability of such a system.