【摘要】 由于铸铁管线本身的特殊性,使采用软管内衬修复技术进行修夏施工时,需要运用许多特殊工法来确定工程质量。更多还原

【Abstract】 Due to the particularity of cast iron pipe, many special process should be applied whenusing lining hose technology in renovation operation so as to ensure project quality.更多还原