Vial, Cap, Syringe Filter manufacturer / supplier in China, offering Alwsci 6mm 300UL Micro Glass Insert Connical Base with Polyspring, Alwsci Gl14 Gl18 Gl32 Gl45 PBT Caps for Mataching Reagent Bottle, 20ml Clear Glass Crimp Headspace Vial with Graduations for Gc Analysis and so on.