| 英文名称: | | lbenzene and alpha-hydro- omega -hydroxypoly(oxy-1,4-butanediyl), caprolactam-b | | locked | | 1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-, polymerwith 1,3-diisocyanatomethylbenzene and alpha-hydro- omega-hydroxypoly(oxy-1,4-butanediyl), caprolactam-blocked |
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