| 摘要 |
The shaped strip (1) has a longitudinal slot (5) extending from one side (6) of the strip to its core (7). In the endfaces (14), the base (9) is in the form of a thread, so that a screw connection to a transverse strip can be made. A shelf in the slot reaches far enough into the core to make the slot the required depth, even if the strip is not very thick.
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