Syringe needle head and use method of syringe
The invention provides a syringe needle head and a use method of a syringe. The syringe needle head comprises a needle stalk front section and a needle stalk tail section which are mutually separated; the first end of the needle stalk front section is a needle head; the first end of the needle stalk...
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Format: | Patent |
Sprache: | chi ; eng |
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