We know that we only thrive if we can guarantee our combined rate competiveness and good quality advantageous at the same time for SODIUM HYDROSULPHIDE 32%-42%, polyacrylamide modification , Sodium Sulphide Red And Yellow Flakes , Sodium Hydroxide ,Disodium Sulfurothioate . We guaranteed high quality, if clients were not satisfied with the products' quality, you can return inside 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Plymouth , Mauritius ,Peru , Sao Paulo .To get more information about us as well as see all our products, please visit our website. To get more information please feel free to let us know. Thank you very much and wish your business always be great!