| 英文名称: | | 1,4-butanediol, polymer with 2,4-diisocyanato-1-methylbenzene, 2-ethyl-2-(hydro | | xymethyl)-1,3-propanediol and 1,2-propanediol | | 1,4-butanediol, polymer with2,4-diisocyanato-1-methylbenzene,2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 1,2-propanediol |
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