| 摘要 |
<p>A chain comprises a plurality of axially spaced tubular rollers (1) that are interconnected by a plurality of link plates (6). Each link plate has two protruding articulation elements (7) that are each rotatably received in one of the rollers and each have a complementary shaped bearing surface (8) for sliding against the inner surface of the roller. The interconnection of the rollers can be achieved in several different ways, and many different designs of link plate can be adopted.
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