国产三级在线视频播放线_中文一区二区_国产高清在线看_开心激情综合网_男女男精品视频免费观看_欧美6一10sex性hd

Application: It is used to prevent the backflow of medicinal liquid and blood when the air blocking device falls directly on the infusion port of the infusion catheter connected with the visual dropper.

Packing: The inner packing is double-layer sterile plastic bag, and the outer packing is corrugated carton

Industry standard: YY/T0313-2014