Sulphur black br, bn 200%, 522, 521, chinese dyes manufacturer

We are a chinese dyes manufacturer, and produce sulphur dyes 30,000 mt/year, and more than 80% of them are sent overseas. for more than 10 years export experience, we have enough ability to solute the problem in the international business with you, if there maybe have. direct dyes 5,000 mt/year acid dyes 5,000 mt/year sulphur black 20,000 mt/year any request, please feel free to contact us.