Aijiren Technology, Inc, provide chromatography vials, caps, septa, etc. especially 2ml autosampler vials, different neck type: screw neck type, snap neck type, crimp neck type; different neck diameters: 8mm, 9mm, 10mm, 11mm for choose. Vial size: 11.6x32mm; Color: clear, amber, clear with writing patch, amber with writing patch