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以往，一般使用钢管作为暖气管穿楼板、墙体的套管，用这种方法施工时，很难控制套管出楼板和位于墙体的位置，使其达到规范规定的标准。规范规定：安装在楼板内的套管，其顶部应高出地面２０mm，底部应与楼板底面持平；安装在墙壁内的套管，其两端应与饰面持平。在实际施工当
In the past, the general use of steel pipe as the heating pipe through the floor, wall casing, construction in this way, it is difficult to control the casing out of the floor and located in the wall position, so that it meets the standards set by the standard. Specification: casing installed in the floor, the top should be above the ground 20mm, the bottom should be flat with the bottom floor; installed in the wall of the casing, both ends should be flat with the finishes. When the actual construction