Adjustable metal staircase

摘要

The invention relates to a modular, adjustable metal staircase characterized in that it includes fitted modular units to be assembled on the spot without the need of arranging "ad hoc" parts for any application. <??>In order to allow the rise to be adjusted so that the staircase can be arranged for any difference of height, suitable slotted holes are provided to adjust the height of each step. <IMAGE>