发布时间:2025-02-01 13:58:37
在一层的地面下挖一条地沟,地面和两边用砖砌起来,管子放进去后,上面盖上预制的混凝土盖板,然后把土回填起来。如果是北方,记得管道要做保温。
2020中国房地产开发企业品牌价值50强榜单发布 2020房企品牌价值排行榜一览
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