The columns can be equipped with slits in which the elements of frontage can be slipped. The columns can also be provided with the consoles necessary for the support of the beams, travelling bridges, etc Of the metal sections, anchorings, stems of waiting, etc, can also be cast in the columns on request.
The rain water discharges can be cast in the center of the columns. One obtains an esthetic value thus added while ensuring a protector of these discharges against deteriorations.
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