Tianjin Yufeng Chemical Co.,Ltd was established in 2003 ,specializes in the research,development,sales and technology consult of calcium hypochlorite and related fine chemical products. We are the most competitive manufacturer of the calcium hypochlorite (bleaching powder) by sodium process and calcium process and sodium hypochlorite in north of China with annual output 20000 tons and become one of the largest factory of manufacturing calcium hypochlorite. We adopted most ....