dear friends.
our company largest producer of dye and pigment intermediate manufacturer from china.we are largest 3,3'-dichlorobenzidine manufacturer and our group has a branch factory fro the product and our output total 7000mt/per year.(hydrogenated reduction)
we can supply many kind of pigment and pigment intermediate.
if you are interested in our product pls feel free to contact us
exporter.gaoyouchem@gmail.com