| 摘要 |
A universal plug which can be used to close various size containers such as those used in health care for collecting and handling human blood, fluids, and the like. The universal plug comprises a plurality of stepped posts (1, 2, 3) each of which comprises at least one ring (9, 10, 11, 12, 13, 14, or 15) for sealing the internal surface of the container. The lowermost ring further comprising a chamber for easy insertion into the container.
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