The vials are preferentially used on instruments of autosample 1.5 ml sample vial for wholesales,HTA,HPLC 1.5ml vials supplier,HPLC 1.5ml vials,Varian,autosample 1.5 ml sample vial with high quality ®,etc. 32*12mm,1.5ml/1.8ml/2ml Screw Neck vials for GC and HPLC Wide opening requires Micro-Inserts with a diameter of 6mm Clear glass is made from