Single-direction curved corrugated pipe

The invention discloses a single-direction curved corrugated pipe. The single-direction curved corrugated pipe comprises an integrally molded pipe body, wherein one side of the pipe body is provided with a flexible wall part which can be stretched, the other side of the pipe body is provided with a...

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1. Verfasser: DAI AIQING
Format: Patent
Sprache:eng
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