| 摘要 |
The present invention relates to an adjoining device consisting of at least two pieces of elements to be jointed together. The first element having a hole with an adjoining plane at the contact area to the second element, the second element having a flange and a protrusion which fits into the hole of the first element, whereby in the adjoined the flange of the second element is in contact with the adjoining plane of the first element.
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