| 摘要 |
Improved urban panel, constituted by two plates (1-2) between which is arranged a filling (3) of insulating material and in which one of the plates (1) has two asymmetric surface sections (12-14) which are arranged in separate planes connected together by a third slightly inclined orthogonal surface section (13), whereas the other plate (2) has two asymmetric sections (22-24) opposite the previous ones, arranged in separate planes and connected together by a third orthogonal surface section (23) provided with a central loop (26), the major part of the asymmetric major sections being corrugated (undulated). <IMAGE>
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