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CAS NO:72928-64-4
CAS:
72928-64-4
英文名称:
2-oxepanone, polymer with 1,2-ethanediol, alpha-hydro- omega -hydroxypoly(oxy-1
,4-butanediyl) and 1,1'-methylenebis[4-isocyanatobenzene]
2-oxepanone, polymer with 1,2-ethanediol, alpha-hydro-omega -hydroxypoly(oxy-1,4-butanediyl) and
