Puncture-proof retractable blood taking needle
The utility model relates to the technical field of blood taking needles, and particularly discloses a puncture-proof retractable blood taking needle which comprises a protection box and an extrusionblock, a limiting cylinder is fixedly connected to the center of the top of the inner wall of the pro...
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| Hauptverfasser: | , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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