| 英文名称: | | bis(hydroxymethyl)-1,3-propanediol (4:1), polymer with 1,1'-methylenebis[isocya | | poly[oxy(methyl-1,2-ethanediyl)], alpha-hydro- omega-hydroxy-, ether with 2,2-bis(hydroxymethyl)-1,3-propanediol (4:1),polymer with 1,1'-methylenebis[isocyanatobenzene] |
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