... technology and factory manufacture Good function/reusable butyl rubber stopper for glass bottle Good function /reusable butyl rubber ... temperature resistance-40°C-200°CTechnologyMoulding, punch, extrusionFunctionDustproof, good sealing Use time More than Ten yearcertificateISO And FDAUse ... PayPal 1,the produce process2,the package3,the usage Good function /reusable butyl rubber stopper for glass bottle ...