| 摘要 |
<p>PCT No. PCT/IB96/00457 Sec. 371 Date Nov. 3, 1997 Sec. 102(e) Date Nov. 3, 1997 PCT Filed Apr. 5, 1996 PCT Pub. No. WO96/35915 PCT Pub. Date Nov. 14, 1996A hexagonal refractory brick is constructed with tapered sides so it can be stacked 3-on-1 and 1-on-3, the bottom surface of the brick fitting between projections on the top surfaces of three others. A central vertical channel in the brick is complemented by other vertical channels formed by the assembly of a plurality of bricks, and horizontal channels which are relatively wide at the bottom.</p> |
