China Closures For 2mL Hplc Vial Manufacturers,Suppliers . Rich products line including Chromatography Vial,Storage Vial (from 2ML-500ML),Caps,Septa and Syringe filter,Tools(Vial rack,Crimper) etc,which approved by SGS,CNS. C0001470 Red 9-425 Open Top Smooth Screw Cap with 9mm White PTFE/Red Silicone 1mm thick. 100pcs/pk