天然橡胶0.93,异戊橡胶0.94,丁苯橡胶0.94,顺丁橡胶1.93,氯丁橡胶1.23,丁基橡胶0.91~0.93,丁腈橡胶0.96~1.02,乙丙橡胶0.85,硅橡胶0.98,氟橡胶1.4~......