| 摘要 |
A corrugated tube for sewage pipes is provided to serve as a connector between the pipes so as to vary the angle of the pipe freely. A corrugated tube for sewage pipes has a main body having respective pipe insertion ports(1) at both ends and a corrugated part(3) in the middle. Protrusions(2) are formed in the vicinity of the pipe insertion ports. Each pipe insertion port has an inner diameter for insertion of the sewage pipe. Each protrusion has a predetermined thickness and height.
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