Specification :

" We can provide the O-Rings of American Standard ( AS 568) , English Standard ( BS 1516) , Japanese Standard ( JIS B 2401) as well as International Standard ( ISO 3601/ 1) .
The product quality conforms to the above standard regulations.
We can also make the appointed specification goods according to your requirement. The material include NBR, SI, VITON, EPDM etc.
About the details, please visit our website as follows:
www.dlyingyu.com"