| 英文名称: | | 1,4-butanediol, polymer with 4,4'-diisocyanato-3,3'-dimethyl-1,1'-biphenyl and | | alpha-hydro- omega -hydroxypoly(oxy-1,4-butanediyl) | | 1,4-butanediol, polymer with4,4'-diisocyanato-3,3'-dimethyl-1,1'-biphenyl and alpha-hydro- omega-hydroxypoly(oxy-1,4-butanediyl) |
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