Leading manufacturers, exporters, suppliers of Acid Black 2, Solvent Black-5 (SS), Solvent Black 7, NIGROSINE BLACK WIDELY USES IN Bakelite plastics,Writing inks , Ball Point Pen Ink ,Shoe polishes, Decorative laminates , Leather Dyeing,Silk dyeing, , Photocopier toner, Inkjets inks, Stamp-pad and ribbon inks, Graphite Depressant ,