PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering Wholesale Sample Vials 13mm Septa 13-425 PTFE Silicone Septum, Wholesale Laboratory 13-425 Screw Autosampler Vial Caps PTFE Silicone Septa S134, Lab 4ml Glass Clear HPLC Vial with 13-425 Plastic Screw Cap and Septa V1317 100PCS/Pack and so on.