Vials 8-425 2ml Thread for GC Chromatography 2021 - 04 - 27 Quzhou Lab Technology Co.,Ltd mainly produces various types of chromatography Sample Vials, Syringe Filters, Petri Dish ,Cuvette,frozen pipes, deep well plates , Centrifugal Tube ,chromatography membrane filter, medical pharmacy bottle, butyl rubber stopper, various types of thermometers used for