Size 13 and 20mm

The Butyl Rubber Products can be typed of three categories, including Butyl Rubber Stopper, Syringe Plunger for injectable Cylinder and PP Stopper. The Butyl Rubber Stopper, applying to the supplement packing for injection powder, infusion or other preparations. The product is up to China National Standard and we are the largest manufacturer of this product in China. The Syringe plunger also called Disposable Sterilized plunger for Injection Cylinder, which shall compact with disposable sterilized Injection cylinder, performing the function of preventing from liquid leaking between the plunger and the wall of the injection cylinder. The product covers 1ml to 100ml according to the specification of the syringe. While the PP stopper is mainly used for the airproofing and educing of soft infusion packing. Furthermore, we also can produce according to customer's requirement.