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FLOOR DRAINAGE CONSTRUCTION METHOD FOR BUILDING
FLOOR DRAINAGE CONSTRUCTION METHOD FOR BUILDING
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机译:建筑楼板排水施工方法
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摘要
The present invention relates to a construction method for a drain trap in a veranda of an apartment building, capable of minimizing a drain trap from being damaged when a concrete layer is shrunk or expanded due to the change of seasons and allowing a worker to easily correct a position of the drain trap even if the holes for installing a drain trap formed on a veranda of the upper and lower floors are not matched.
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