Established in 1995, AOK has made concrete contribution to valve seal industries for over 10 years. We supply high quality valve seals for cars such as Alfa Romeo valve seals, BMW vehicle valve seal and motorycycle’s, etc. In order to maintain high quality, the valve seal 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 interested in our products, please do not hesitate to contact with AOK. AOK delights in serving customer with satisfaction.

If you are looking for various rubber parts, oil seal, or others, please do not be hesitate to contact with through phone call or by email. Let us know your requirements in order to find what you need. Feel free to contact with us.