发布时间:2025-01-29 23:27:52
如果你肯花钱的话,建议预制一根预应力梁比较安全。主筋用32的箍筋12的就够了,绑个双排的笼子。
兔宝宝生产厂家是否生产竹木纤维板 市场上现在有兔宝宝牌竹木纤维集成装饰板售但听朋友讲兔宝宝厂
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