Its structure can be roughly divided into three categories: conical, T-shaped, and flanged; It can be divided into antibiotic bottle stopper, biological medicine bottle stopper, spray medicine bottle stopper and infusion bottle stopper according to the use.
The stopper rubber material should not contain harmful soluble substances such as lead, mercury, arsenic, barium, etc., and should not work with the drug that can be loaded. The bottle stopper itself should not have any ejecta. It is generally made with rubber materials such as NR, IIR, and SBR, and produced by compression molding. Widely used in the pharmaceutical and medical industries.