... bottle, perfume bottle) Small food & beverage bottle, Butyl rubber stopper, AL-plastic multi-caps, Accessories for dropper bottle. Prefilled ... three categories,including butyl rubber stopper,Syringe plunger for injuctable cylinder and PP stopper.The butyl rubber stopper production house was designed ... the specification of the syringe.While the PP stopper is mainly used for the airproofling and educing ...