Building a staircase is a complicated job that only professionals can do. The spiral staircase is much more complicated and need a lot of more time till its finish look. According to construction workers, the spiral stairs made of concrete is the most difficult one. The construction site is the area where the magic happens. If there is no problems here, the final result will be spectacular, as we see on net.  See how the magic is happening, while is still ugly and under construction.

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