... -sales service O ring is one of the main products in our factory, it is made from Nitrile(NBR), HNBR ,EPDM, Silicone, Fluorine ... (FKM,FPM), Neoprene(CR),Styrene(SBR) ,CR,ACM,PU etc.Application: O ring is widely used in ... and so on.Choose our O ring has the below reason:Our O rings in high quality,precision size.Our O rings have the excellent performance ...