As a global leading supplier of sample vials, Aijiren can supply a series of sample vials from 1ML to 1000ML. Both ODM & OEM business are optional. Autosampler Vial:- 4ml Lab Vials for Autosampler 13-425 Screw 13-425 Screw Thread Cap With Septa Teflon Septa Crimp Top Headspace Vials gas chromatography mass spectrometry 20mm Open Top Crimp Cap GC MS Screw Top Headspace Vials hplc system hplc