our company is specialized in the production of various kinds of halogenated butyl rubber bottle stopper for pharmaceutical use with an annual production capacity of 2 billion .we have very clean production environment including5000square meters of cloase type workeshops. The die cutting ,testing and pre-cleaning procedures are all finished in the washing workshop class-100000,the washing drying and sterilizing procedures are finished in the washing workshop class -10000,and inner packaging is sealed in class-100 laminar flow fume hood .