| 英文名称: | | 2-oxepanone, polymer with 1,3-diisocyanatomethylbenzene, 2,2-dimethyl-1,3-propa | | nediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol | | 2-oxepanone, polymer with 1,3-diisocyanatomethylbenzene,2,2-dimethyl-1,3-propanediol and2-ethyl-2-(hydroxymethyl)-1,3-propanediol |
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