| 英文名称: | | carbonic acid, diphenyl ester, polymer with 1,4-butanediol, 1,6-hexanediol, 4,4 | | '-methylenebis[benzenamine], 1,1'-methylenebis[4-isocyanatobenzene] and methylo | | carbonic acid, diphenyl ester, polymer with1,4-butanediol, 1,6-hexanediol, 4,4'-methylenebis[benzenamine], |
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