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c30的混凝土配合比是多少
更新时间: 2022-01-17 09:59:45  

c30混凝土配合比是:水175kg,水泥461kg,砂512kg,石子1252kg,配合比:0.38:1:1.11:2.72。

关键词: c30 混凝土 配合 多少

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