| 摘要 |
<p>A manhole setup is provided for sewer systems which consists of at least two connecting points for an inlet and/or an outlet by means of subsequent pipe connecting adapters, such as clay pipes, Manhole rings are mountable on the manhole setup which are characterized in that the manhole setup and wall parts have vertical subdivision. The wall parts are subdivided in wall segments, each having arch length with graduated radians.</p> |
