Zhengding Shengguo Chemical Factory is one of the leading dyes factory in china.

Our factory specializes in the development, manufacture, marketing and after-sales service of Sulphur Black.40% of our product exported to south America, Pakistan , Europe etc. The capability of sulphur black is 20000tons per year. The product inclued sulphur black 150%, sulphur black BR .180%, sulphur black BR 200%, sulphur black BR 220%.. ..