Ethylene Propylene Rubber-EPDM/EPM hmanga siam a ni
Ethylene propylene rubber hi synthetic rubber a ni a, ethylene leh propylene te chu monomer ber atan hman a ni a, molecular chain chhunga monomer awm dan hrang hrang a zirin binary ethylene propylene rubber(EPM) leh tertiary ethylene propylene rubber(EPDM) te a awm a ni.