| 英文名称: | | 2-oxepanone, polymer with 2,4-diisocyanato-1-methylbenzene and 2-ethyl-2-(hydro | | xymethyl)-1,3-propanediol, caprolactam-blocked | | 2-oxepanone, polymer with2,4-diisocyanato-1-methylbenzene and2-ethyl-2-(hydroxymethyl)-1,3-propanediol, caprolactam-blocked |
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