| 英文名称: | | 2h-azepin-2-one, hexahydro-, polymer with 1,3-diisocyanatomethylbenzene, 2-(2-e | | thoxyethoxy)ethanol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 1,1'-methyle | | nebis[4-isocyanatobenzene] | | 2h-azepin-2-one, hexahydro-, polymer with1,3-diisocyanatomethylbenzene, 2-(2-ethoxyethoxy)ethanol,2-ethyl-2-(hydroxymethyl)-1,3-propanediol and |
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