Autosampler Vials,Headspace Vials,Chromatography Vials . Aijiren uses 2ml snap vial to choose whether the bottle body has a label area,whether it has a scale,Aijiren or clear. The glass material of 2ml snap vial is 5.0type or 7.0type,the color of pp cap,and the color of ptfe septa can be selected.