PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 9-425 9mm Short Tread Caps for HPLC Autosampler Vial, 1.5ml 9mm 9-425 Vial Screw Neck Sample Vial Caps with PTFE/Septa Sc9191, 1.5ml 9mm 9-425 Vial Screw Neck Sample Vial Caps with Septa and so on.