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%. Zhengding Shengguo Chemical Factory has an excellent design team and a highly efficient management team. We have strict internal management systems and highly talented technicians who have rich working experience in Sulphur Black. In addition, we have set up several departments, including R&D, Production, Sales and Service. We always insist on the spirit of "Good faith". Thus, our corporation has won trust and compliments from customers. We are looking forward to good cooperation with partners at home and abroad and to creating a glorious future. We sin