| 英文名称: | | 1,4-butanediol, polymer with 1,3-diisocyanatomethylbenzene, alpha-hydro- omega | | -hydroxypoly(oxy-1,4-butanediyl) and alpha-hydro- omega -hydroxypoly(oxy-1,2-et | | hanediyl) | | 1,4-butanediol, polymer with1,3-diisocyanatomethylbenzene, alpha-hydro- omega-hydroxypoly(oxy-1,4-butanediyl) and alpha-hydro- omega-hydroxypoly(oxy-1,2-ethanediyl) |
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