Butyl rubber closures are made of butyl rubber including bromo butyl rubber and chloro butyl rubber collectively known as halogenated butyl rubber. A wide variety of specifications  are including 13mm, 20mm, 26mm, 28mm and 32mm rubber stoppers.  Production according to ISO standards or as per your specifications.
 Closures for infusion bottles with or without coated
 Blood sampling stoppers
Ready-for-Sterilization closures; Ready-to-Use closures; Siliconization.