| 摘要 |
<p>PCT No. PCT/DE91/00441 Sec. 371 Date Nov. 25, 1992 Sec. 102(e) Date Nov. 25, 1992 PCT Filed May 27, 1991 PCT Pub. No. WO91/19058 PCT Pub. Date Dec. 12, 1991.The clay tile proposed consists of a clay-bound core layer (20) with, on each side of it, a surface layer (22,24) of netlike tear-resistant textile material which is at least partially embedded in the clay of the core layer (20).</p> |
