[الإنجليزية] methyl diphenyl diisocyanate MDI methylene diphenyl diisocyanate methylene diphenyl diisocyanate methylene diphenyl diisocyanate Methylene diphenyl diisocyanate methylene diphenyl diisocyanate methylene diphenyl diisocynaate diphenylmethane-diisocyanate methylene diphenyl diisocyanate methylene diphenyl diisocyanate MDI methylene diphenyl diisocyanate MDI methylene diphenyl diisocyanate methylene diphenyl diisocyanate