| 摘要 |
The invention is a chain comprising a plurality of cage-shaped elements connected in succession, the cage-shaped element comprising a central body from which two or more lateral bodies branch off whose free ends are arranged opposite each other, slidingly inserted in another cage-shaped element adjacent to the cage-shaped element and facing the corresponding central body. The chain comprises an elastic element interposed between the free ends of the lateral bodies of each cage-shaped element and the central body of the adjacent cage-shaped element.
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