The corporation keeps to the operation concept scientific management, superior quality and performance primacy, consumer supreme for Organic Intermediate, Sodium Sulphide 9-Hydrate , NAHS UN 2949 , Sodium Sulfide for leather ,70% Nahs Sodium Hydrosulfide . We promise to try our greatest to deliver you with high quality and economical products and services. The product will supply to all over the world, such as Europe, America, Australia,French , Vietnam ,Denver , Liverpool .Our Company has professional engineers and technical staff to answer your questions about maintenance problems, some common failure. Our product quality assurance, price concessions, any questions about the products, Please feel free to contact us.