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請問土建施工中水平放置預埋板的標高誤差有多少毫米 |
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點評
請問層高和全高什么區別?什么概念?
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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