PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 1.5ml 9mm Vial Screw Neck Sample Vial Caps SC9291, 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 and so on.