We retain bettering and perfecting our goods and service. At the same time, we perform actively to do research and enhancement for 70% Sodium Hydrosulphide, idrogenosolfuro di sodio idratato , Polyacrylamid , Sulfide material ,Barium Sulphate Powder . We welcome customers all over the word to contact us for future business relationships. Our products are the best. Once Selected, Perfect Forever! The product will supply to all over the world, such as Europe, America, Australia,Costa rica , Congo ,Ghana , venezuela .We are fully aware of our customer's needs. We provide high quality products, competitive prices and the first class service. We would like to establish good business relationships as well as friendship with you in the near future.