PTFE/Silicone Septa, Hand Crimpers, Syringe Filters manufacturer / supplier in China, offering 8mm HPLC Gc Autosampler Vial Caps with Septa, Wholesale 1.5ml 8mm 8-425 HPLC Vial Screw Caps with Septa C83, Screw Caps with Septa for 8-425 Screw Neck HPLC Vial and so on.