| 英文名称: | | 3-propanediol, 2,2-bis(bromomethyl)- polymer with .alpha.-hydro-.omega.-hydr | | oxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[isocyanatobenzene] | | 1,3-propanediol, 2,2-bis(bromomethyl)-, polymer with.alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and1,1'-methylenebis[isocyanatobenzene] |
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