Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶（EPDM）
乙烯、丙烯和少量非共轭二烯
共聚物。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶（EPDM）乙烯、丙烯和少量非共轭二烯共聚物。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
二烯和烯基
非
不
组分，可聚合产生凝胶。对于给烯和烷基，氢化可以改善产品质量。
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