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UNDERDRAIN FILTER BLOCK AND METHOD FOR SECURING AN UNDERDRAIN FILTER BLOCK
UNDERDRAIN FILTER BLOCK AND METHOD FOR SECURING AN UNDERDRAIN FILTER BLOCK
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机译:欠下过滤器块和用于固定欠下过滤器块的方法
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摘要
An underdrain filter block includes a top wall, a pair of side walls extending from the top wall, a bottom wall extending between the pair of side walls, first and second ribs, and a wall segment extending between the first rib and the second rib to define a grout chamber configured to receive grout during installation of the underdrain filter block.
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