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防水混凝土等级有几级_家居日记
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防水混凝土等级有几级

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防水混凝土等级有几级 其是指混凝土的抗渗等级，其是有五级的，分别为：1、P4，能够抵抗0.4的静水压力。2、P6，能够抵抗0.6的静水压力。3、P8，能够抵抗0


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