| 摘要 |
A rigid pipe ( 1 ) is achieved according to the invention in that half-cylinder shaped elements ( 2 ) are joined/hinged ( 3 ) to each other and where to a such chains are connected together with their concave sides in a zipper-like motion. The two half-cylindrical chains are spooled ( 13 ) up individually on each side of a housing ( 12 ). This result in a particularly rigid pipe of varying length with a wide area of use.
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