| 摘要 |
The tongue accommodation comprises a recess (23) in the first tension ring end (17) and the tension ring end (19) has at least one tongue (25) on the tension ring (156). The tongue or tongues is/are formed by a stamping process out of the material of the tension ring. The first tongue at the second tension end is directed towards the first tension ring end and the second tongue is directed towards the second tension ring end.
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