| 英文名称: | | methylenebis[4-isocyanatobenzene] and oxybis[propanol] | | hexanedioic acid, polymer with1,3-diixocyanatomethylbenzene, 2,2-dimethyl-1,3-propanediol,alpha-hydro- omega -hydroxypoly[oxy(methyl-1,2-ethanediyl)], | | polymer with 1,3-diixocyanatomethylbenzene, 2,2-dimethyl-1,3-hexanedioic aci | | alpha-hydro- omega -hydroxypoly[oxy(methyl-1,2-ethanediyl)], 1,1'-propanedio |
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