Drainage system for use in masonry block construction
作者： Tom Sourlis
DOI:
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摘要: A drainage system for use in concrete masonry unit (CMU) wall construction comprises a tray of size corresponding to CMUs, be received beneath course use. The opposite side flanges abut superjacent CMU and supporting pan therebelow. may angled from back front edges middle portion thereof urge water toward the tray.
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