| 摘要 |
<p>The device has side compensators e.g. internal compensator (105), concave external compensator (106), convex external compensators (107), fixed to a fixed support, where each compensator comprises a concave cut and a convex cut. A mold (115) is flexibly supported on the compensator. The compensator is made of flexible material and composite material. The flexible mold comprises elements whose edges have a lesser thickness than that of the center, and a smooth face. The compensator presents a cut in L-shape with two plane surfaces forming a right angle between each other. An independent claim is also included for a method for forming a circular staircase.</p> |
