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5米跨度梁钢筋要多大_家居日记
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5米跨度梁钢筋要多大

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5米跨度梁钢筋要多大 要在梁的上部埋2根直径是10毫米的钢筋，下部埋5根直径25毫米的钢筋，下部分成两排进行布置，下排放3根，上排放2根。此外，还要在梁侧面埋4


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