针柄
Component part name: needle handle, thin tube, steel needle, needle protective cover.
构成产品零部件名称:输液针针柄、细管、输液针针柄、钢针、输液针保护套。
The needle handle or needle end of the needle is provided with an air filtering apparatus and a back flowing preventing apparatus.
该针的针柄或针尾设有空气过滤装置和防反流装置。
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