Ethylene propylene rababa-EPDM/EPM .
Ethylene propylene rababa nye rababa si wowɔ kple ethylene kple propylene abe monomer vevitɔ ene, le monomer ƒe wɔwɔme vovovo si le molecule kɔsɔkɔsɔa me nu la, binary ethylene propylene rubber(EPM) kple tertiary ethylene propylene rababa(epdm).