| 英文名称: | | 2-oxepanone, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,1'-methy | | lenebis[isocyanatobenzene] and 2,2'-oxybis[ethanol] | | 2-oxepanone, polymer with2-ethyl-2-(hydroxymethyl)-1,3-propanediol,1,1'-methylenebis[isocyanatobenzene] and 2,2'-oxybis[ethanol] |
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