| 摘要 |
The invention relates to a system of step-bearing supports and necessary accessories adjustable in height, length and step form for constructing mountable stairs. The necessary accessories are anti-compressive cylinders, distance-adjusting cylinders, screws and nuts. The invented system is designed for the manufacture of rectilinear, circular, spiral, combinational rectilinear-and-spiral stairs with wooden, metal, crystal or plastic steps. The steps can be part of the axles connected to the step-bearing supports, or supported by blades or sections. |
