The stopper is the main seal and outlet of the bottled drug. Because it is in direct or indirect contact with the drug, it will inevitably interact with the drug through adsorption, absorption, penetration and extraction, thereby affecting or contaminating the drug. PP rubber medicinal bottle stoppers with their unique chemical stability and excellent sealability ensure the quality of medicines, extend the shelf life, improve the safety of medication, reduce the hot waxing process, pads and nylons required for the production of natural rubber stoppers Film process. PP is far superior to natural rubber plugs in terms of product standards, production levels, performance, and product quality.