Chromatography Autosample Screw Vials for Sale. Zhejiang Aijiren Inc is a manufacture of Chromatography consuambel in China. There are high performance liquid chromatography & gas chromatography consumables such as HPLC/GC screw vials with matched caps for laboratories. Here is the list of some screw vials: 9-425 Vials, 8-425 Vials, 10-425