| 摘要 |
<p>A safety syringe includes a barrel, a plunger, and a needle hub. The needle hub is detachably installed in a tube portion. The plunger can be moved to an injecting position, a limit position, and a disposal position with respect to the needle hub. 21;-322 > 321 23231 23 2 232 25 - Oo r4 - 43 22 43</p> |
