| 英文名称: | | isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,4-butanediol a | | nd alpha-hydro- omega -hydroxypoly[oxy(methyl-1,2-ethanediyl)] | | isocyanic acid, polymethylenepolyphenylene ester,polymer with 1,4-butanediol and alpha-hydro- omega-hydroxypoly[oxy(methyl-1,2-ethanediyl)] |
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