| 英文名称: | | polymer with 1,4-butanediol, 4,4'-diisocyanato-3,3'-dimethyl-hexanedioic aci | | 1,1'-biphenyl, 1,3-diisocyanatomethylbenzene and 1,2-ethanediol | | hexanedioic acid, polymer with 1,4-butanediol,4,4'-diisocyanato-3,3'-dimethyl-1,1'-biphenyl,1,3-diisocyanatomethylbenzene and 1,2-ethanediol |
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