| 英文名称: | | 2-oxepanone, polymer with alpha-hydro- omega -hydroxypoly(oxy-1,4-butanediyl), | | 4,4'-methylenebis[benzenamine] and 1,1'-methylenebis[4-isocyanatobenzene] | | 2-oxepanone, polymer with alpha-hydro- omega-hydroxypoly(oxy-1,4-butanediyl), 4,4'-methylenebis[benzenamine] and |
|
m.cnreagent.com