PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 0.3ml Micro Inserts for HPLC Gc Autosampler Vials, 300UL Clear Glass Micro Insert Flat Bottom for 2ml HPLC Vials, 1.5ml 11mm Snap Ring Vial HPLC Vial Clear Glass 150UL Micro-Insert and so on.