2020/6/14 · Free Sample for 2ml 9mm Amber Hplc Vials from aijiren Tech Jun. 14th, 2020 aijiren has been involved in the design and manufacture of Vials, Caps and Seals for Chromatography, we successfully developed various types of Autosampler vials specially used in HPLC, UPLC, GC and Headspace Chromatography.