二бензолметилалкан二异氰кислотаэфирсмесь物
mixture of (4,4'-Diisocyantodiphenylmethane,2,4'-Diisocyanatodiphenylmethane,2,2'-Diisocyanatodiphenylmetane)
mixture of (4,4'-Diisocyantodiphenylmethane,2,4'-Diisocyanatodiphenylmethane,2,2'-Diisocyanatodiphenylmetane) AR