China HPLC Vials Manufacturers, Suppliers, Company - Factory . 250uL Conical Micro-Insert, 31*5.7mm, Suits for 9mm Vials 250uL Micro-Insert with Mandrel Interior, & Polymer Feet, 29*5.7mm, Suits for 9mm Vials 0.3mL Clear PP Short Screw Micro-Vial, 9mm Thread, 11.6*32mm . 1.5mL 11mm Snap Ring Vial ND11 for GC and HPLC