Your Best Cooperation Partner of Seal O Ring – AOK

Established in 1995, AOK has made concrete contribution to seal o ring industries for over 20 years. The company supplies high quality Valve Seal for cars such as Alfa Romeo valve seals, BMW vehicle valve seal and motorcycle’s, etc… In order to maintain high quality, the seal o ring from AOK are all inspected thoroughly, therefore, AOK has won worldwide recognition.


With more than 10 years of experiences in designing and producing all kinds of oil seals, AOK has acquired rich knowledge and the latest technology in the automobile application field – being a professional valve seal manufacturer with ISO9001 and TS16949 qualification. AOK markets globally and sells the valve stem seals in European, North America and Asian countries. Maintaining excellent quality and customer satisfaction is AOK’s No. 1 priority. AOK provides you with top quality of valve seals.


If you are looking for various seal o rings, rubber parts, oil seals, or others, please do not hesitate to contact with AOK. Let them know your requirements in order to find what you need.



AOK Valve Stem Seals Ltd.

No., 24-6, Nankang 3rd Rd., Nantou City 540 Taiwan

TEL: 886-49-2263777

FAX: 886-49-2263776