PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 10-425 2ml Screw Neck HPLC Vials ND10 Wide Opening, 1.5ml 10-425 Vial Screw Neck HPLC Gc Vial, 1.5ml 11mm Crimp Vial Micro-Insert IP250 and so on.