Ethylene propylene rɔba-EPDM/EPM .
Ethylene propylene rɔba yɛ rɔba a wɔayɛ a ethylene ne propylene yɛ monomer titiriw, sɛnea monomer no mu nneɛma ahorow a ɛwɔ molecule nkɔnsɔnkɔnsɔn no mu no te no, ethylene propylene rubber(EPM) ne tertiary ethylene propylene rubber(epPDM) wɔ hɔ.