A pharmaceutical rubber stopper is a type of rubber closure that is used to seal vials and other containers in the pharmaceutical industry. It is made of rubber or elastomeric material that is resistant to chemicals and can withstand the sterilization processes used in the production of pharmaceutical products. The stopper is typically placed on the neck of a vial and is held in place by a cap or crimp seal. It serves to protect the contents of the vial from contamination and to maintain the integrity of the product. Rubber stoppers are used in a variety of applications, including the storage and transport of injectable drugs, and are essential components of many pharmaceutical products.
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