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Elastomer Container Closure Components (Rubber Stoppers, Tips)

Required for vial-format ophthalmic injectables. Dominant supplier: West Pharmaceutical Services (Exton, PA — NovaPure stoppers). Competitor: Datwyler (Switzerland). Must pass USP <381> extractables testing.

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1 essential American goods rely on elastomer container closure components (rubber stoppers, tips) somewhere upstream in their supply chain.