| 摘要 |
A chain includes a plurality of links, each link has a first end having a knob and an opposite second end having a cavity, wherein the cavity is shaped and dimensioned to receive the knob of a mating link. The links are joined together knob-to-cavity to form a chain wherein the links can both axially and transversely rotate. In an embodiment, each link has a neck which receives a collar. In another embodiment, a wire is passed through a tunnel in all the links. |
