Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of quality 1st, purchaser supreme for CAS No: 16 721-80-5, Sodium Hydrosulphide 10/20/30ppm , Rugar 98% Min , Sodium Sulfide Uses In Leather Industry ,White Caustic . With our rules of business reputation, partner trust and mutual benefit, welcome all of you to work together , grow together. The product will supply to all over the world, such as Europe, America, Australia,Gambia , Oman ,Denver , Angola .All these products are manufactured in our factory located in China. So we can guarantee our quality seriously and availably. Within these four years we sell not only our products but also our service to clients throughout the world.