介绍了公司地下消防水系统,分析了地下消防水系统管道腐蚀泄漏原因,介绍了非开挖地下消防水系统U-HDPE管内衬修复工艺,并对经济效益进行了分析。% Underground Firefighting Water system and the corrosion causes of its Underground Firefighting pipes was introduced in this paper. Then the no-dig repairing technology of U-HDPE pipe lining was introduced and its economic benefit was analyzed.
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