Our firm aims to operating faithfully, serving to all of our consumers , and working in new technology and new machine continually for CAS No: 16 721-80-5, Sodium Sulfhydrate , sodium disulfide 60% Min , Sodium Sulfide Flakes ,Chemical Formula Caustic Soda . Welcome friends from all over the world come to visit, guide and negotiate. The product will supply to all over the world, such as Europe, America, Australia,Iran , Ukraine ,Chicago , Turkey .Due to good quality and reasonable prices, our items have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.