单选 which polymer has excellent oil resistance?
A、ASBRStyrene-butadienerubber;
B、BNBRNitrilebutadienerubber;
C、CPIPPolyisoprene;
D、DIIRButylrubber
发布时间:2025-07-14 22:32:32
A、ASBRStyrene-butadienerubber;
B、BNBRNitrilebutadienerubber;
C、CPIPPolyisoprene;
D、DIIRButylrubber