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3米6的预制板承重极限为多少_家居日记
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3米6的预制板承重极限为多少

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3米6的预制板承重极限为多少 3米6的预制板承重极限在2.2吨左右。预制板宽度多为0.4或0.5米等,正常承载力为一级预制板400公斤/平方,二级预制板700公

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