| 英文名称: | | 2-oxepanone, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) | | , 1,1'-methylenebis[isocyanatobenzene] and 2,2'-[1,4-phenylenebis(oxy)]bis[etha | | 2-oxepanone, polymer with.alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl),1,1'-methylenebis[isocyanatobenzene] and |
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