PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 300UL Micro Insert Flat Bottom for 2ml HPLC Gc Vials, for 9 10 11mm HPLC Vial Flat Bottom 300UL Micro Insert, 1.5ml 9mm Vial Screw Neck Vial ND9 250ul 300ul Micro-Insert I300 and so on.