三元乙丙胶板产品性能：耐老化、耐臭氧、电性能好、耐疲劳；产品用途：涵闸、桥梁工程橡胶施工、止水和屋顶防漏及冲制胶垫、密封件；技术参数：比重：1.4，强力：8Mpa,伸长：300%，硬度：70°。 Three Yuan second grade third off-set <dnt> </dnt> product performance: Bears the aging, to bear the ozone, the electricity performance, to bear wearily well;
 product use: The culvert and sluice, the bridge building rubber construction, stops the water and the roof antidrip and stamps out the cushion, the seal;
technical parameter: Proportion: 1.4, force: 8Mpa, elongation: 300%, degree of hardness: 70°.