1,2-Propanediamine,polymer with R-hydro-ö-hydroxypoly(oxy-1,4-butanediyl) and 1,1'-methylenebis[4-isocyanatobenzene] (CAS NO. : 37228-89-0 )
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1 > 1,2-Propanediamine,polymer with R-hydro-ö-hydroxypoly(oxy-1,4-butanediyl) and 1,1'-methylenebis[4-isocyanatobenzene]
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