| 英文名称: | | 3-propanediol, 2-ethyl-2-(hydroxymethyl)- polymer with alpha-hydro- omega -h | | ydroxypoly(oxy-1,4-butanediyl), 1,1'-methylenebis[4-isocyanatobenzene] and 2,2' | | -[1,4-phenylenebis(oxy)]bis[ethanol] | | 1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-, polymerwith alpha-hydro- omega -hydroxypoly(oxy-1,4-butanediyl), |
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