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CAS NO:68845-25-0
CAS:
68845-25-0
英文名称:
thanediol, 1,1'-methylenebis[4-isocyanatobenzene] and 2-oxepanone
hexanedioic acid, polymer with 1,4-butanediol,1,4-cyclohexanedimethanol, 1,2-ethanediol,