... of certificate, and we have already exportto all over the world. Applicable material: SIR, NBR, CR, NR, SBR, EPDM, FKM, IIR, BR etc..Performance for ... , mineral oil and lubricantGood resistance to agingGood electric insulationHigh resistance to hot and cold temperatureLow penetrability of gasWithout harm to human bodyWith ROHS approal.