... rubber stopper for infusion setsMaterialBromobutyl rubberUseFor pharmaceutical package, used with flip-off caps and sealsWays of businessManufacturer; supplierTest standardYBB00052005CertificateCOA, MSDS,ISO13485, CEpackage2000pcs ... PE bags, and then in a carton.Other models:13mm, 20mm, 24mm, 26mm, 28mm, 32mmAdvantagesExcellent self-sealing propertyHigh purity, non toxicityNo ...