PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 1.5ml 9mm Vial Screw Neck Sample Vial Caps with Septa Sc9391, Customizable HPLC Pre-Slit Silicone Septa 9mm Short Screw PP Cap, 1.5ml 9mm Vial Screw Neck Sample Vial Caps SC9291 and so on.