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农村下水管道怎样铺设_家居日记
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农村下水管道怎样铺设

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农村下水管道怎样铺设 铺设下水管道时，是不可设置弯道的。每年都需要对管道做梳理工作，预防堵塞。管道的坡度设计，避免出现倒灌的现象。管道的预埋深度，要确定好。设计


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