| 摘要 |
<p>PCT No. PCT/EP86/00121 Sec. 371 Date Nov. 4, 1986 Sec. 102(e) Date Nov. 4, 1986 PCT Filed Mar. 7, 1986 PCT Pub. No. WO86/05538 PCT Pub. Date Sep. 25, 1986.The spacing retainer contains spacer elements comprising a multiple number of interconnected angle elements and locking elements. The locking elements are lockingly connected with a first structural steel fabric by means of locking parts at their free ends. A second structural steel fabric is held at a spacing from the first structural steel fabric by means of the series-arranged and side-by-side arranged spacer elements. The spacer elements comprise struts for their reinforcement.</p> |
