Ethylene Propylene Rubber-EPDM/EPM 1000 a ni.
Ethylene propylene rubber hi synthetic rubber a ni a, ethylene leh propylene chu monomer lian ber atan a ni a, molecular chain-a monomer awm dan hrang hrang angin binary ethylene propylene rubber(EPM) leh tertiary ethylene propylene rubber(EPDM) a awm a.