... is methane diphenyl diisocyanate (pure MDI), contains a certain proportion of pure MDI and multi-multi-multi-phenyl isocyanate mixture (polymerization ... development And the people's livelihood indispensable new material.Types of brand: Bayer, Besf, Dow, Kumho Mitsui, Lyondell, Juli, Baiyin, Huludao ... , Oceania, Mid East, Eastern Asia, Western Europe chemical MDI MR-200