Staircase, has two parallel footstep height adjustable plates shifted vertically and arranged in slots that are embedded laterally in each sliding groove bar carrier, and elongated hole arranged between conducted slots
摘要
<p>The staircase has step treads, where two parallel footstep height adjustable plates (4) that are shifted vertically are arranged in slots (11) which are embedded laterally in each sliding groove bar carrier. An elongated hole (10) is arranged between the conducted slots. The longitudinal hole forms an alignment with drillings of the parallel footstep height shifting plates that can be bolted.</p>
