Certificatation : ISO/ TS16949 Name: auto rubber oil gasket Material : EPDM,CR,MVQ,NR,FPM,ect market ... ISO/ TS16949 Germany: 2002 ,ISO9002:1994, ISO9001:2000Name: auto rubber oil gasketMaterial : EPDM, NR, IIR, CR and some other synthetic rubber ... , Ect Characteristic: Ozone resistant, High/ Low temperature resistant, Aging resistant, Wearable, Great flexibility,ect. ...