The paper discusses the provisions for the metal or plastic casing in pipe setting of the basic requirements of The Construction Quality Approved Standard of the Water Supply and Sewerage and Heating Project of Building, and analyzes when to set what kind of casing and how to block.%对《建筑给水排水及采暖工程施工质量验收规范》“基本规定”中的设置管道金属或塑料套管的规定进行探讨;分析了何时设置什么样的套管;并应该如何进行封堵.
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