2.rubber material can be butyl or other material.
3.Logo can be designed on the rubber top.
4.the color of the plastic cap can be various according to the Patone code.
5.all products should be test before Ex-factory.
6.the rubber stoppers can be sterlized and packing with plasticbreatherbag,or PE,or RYS bag.
7.the rubber stoppers are used for antibiotics,infusion packing.
8.the rubber stoppers are suitable for 5-30ml tubular vials and moulded vials.
9.the rubber stopperss are suitable for all kinds of 20mm flip off seals.