| 摘要 |
The present invention related to gripping means for use with a unit (2) t o be inserted into and held relative a pipeline (1), where the gripping mean s (3) comprises at least to gripping elements (300) arranged around the circ umference of the main body (10) and formed with an outer surface (301) for c ontact with the internal wall of a pipeline. The outer surface of one grippi ng element in at least a part has a form giving two separate contact section s between the gripping element and an internal wall of a pipeline seen in a circumferential direction in an extended state of the gripping element.</SDO AB>
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