| 摘要 |
Spaced apart webs extend between upright sidewalls of a block having parallel upper and lower surfaces. A plurality of the blocks are placed in staggered linear courses to form a wall. Projections extending upwardly from the webs of the blocks are secured in the spaces between the webs of the blocks of the successive course. The projections interlock with the sidewalls for lateral alignment of the blocks, and are spaced from the webs for longitudinal adjustment of the blocks. Corner blocks and end blocks are also provided.
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