| 英文名称: | | hyl-2-(hydroxymethyl)-1,3-propanediol (3:1), polymer with 1,3-diisocyanato-2-me | | poly[oxy(methyl-1,2-ethanediyl)], alpha-hydro- omega-hydroxy-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1),polymer with 1,3-diisocyanato-2-methylbenzene and2,4-diisocyanato-1-methylbenzene |
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