... seals, which include oil seals,valve stem seals for different cars, trucks, trailers, material are NBR, VITON, SILICONE , PTFE ,ACM.Fetures1. Applications : automobile ... specifications are welcome3. Materials : NBR , RP , FPM , MVQ , ACM , EPDM , PTFE , MFQ.4. Outside diameter from :8 to 1,000mm.5 ...