| 英文名称: | | 1,4-butanediol, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanedi | | yl), 1,1'-methylenebis[isocyanatobenzene], methyloxirane and oxirane | | 1,4-butanediol, polymer with.alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl),1,1'-methylenebis[isocyanatobenzene], methyloxirane and oxirane |
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