20mm Butyl Rubber Stopper for pharmaceutical glass bottles

Butyl Rubber Stopper

• Use medical-grade butyl rubber approved by the U.S. FDA and the Chinese SFDA for production.
• Good fitting with glass bottles, no leakage.
• Reasonable structure, uniform size, go smoothly on track in the production line.
• Stable chemical properties, no leachables.
• Good biological safety, no physiological toxicity, no pyrogenous substance.
• Good drug compatibility, no adsorption and migration when contact with liquid medicine.
20mm Butyl Rubber Stopper for pharmaceutical glass bottles