| 摘要 |
PROBLEM TO BE SOLVED: To provide a manhole member such as a cover body capable of being detached to easily carry out cleaning or inspection inside of an auxiliary pipe member and an upstream side main pipe. SOLUTION: A manhole wall 12a is partially formed of the cover body 28, for example, and an auxiliary pipe line 14 is formed of the cover body 28 and the auxiliary pipe member 26. The cover body 28 can be mounted from the inside of a manhole 12 in a detachable manner.
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