Zhengding County Bairun Chemical Products Manufacturing Co., Ltd., located in  Zhengding County, Shijiazhuang City ,Hebei Province . In 2009, the production of sulfide-based sulfur dyes. In recent years we continue to innovate, all using automated production technology, and in the raw material control and quality control system assiduously, sulphur black production technology more professional more mature, more stable product quality, performance is more superior. We produce sulphur black 200% sulphur black 220%  240% with stable quality, excellent appearance and usability, won the national and Southeast Asian guests of all ages.