精品二区久久I成人高清av在线I成人精品久久I中文字幕 国产精品I久久精品视频在线看I国产日韩欧美网站

Product features:

1. The international standard 1 / 4-28 thread can be directly connected to the luer connector interface, and the syringe can be used for arbitrary injection;

2. The contact material with liquid is PTFE, which is resistant to organic solvent and has good compatibility;

3. Imported from Britain to ensure product quality;