carry on to further improve, to guarantee merchandise high-quality in line with market and buyer standard necessities. Our organization has a top quality assurance procedure have already been established for China CAS No.: 16721-80-5 and Industrial Grade NAHS, sodium hydrosulphide hydrated , Sodium Hydrosulfide , Caustic Soda For Water Treatment ,Water treatment Nash Liquid . If you are interested in any of our products or would like to discuss a customized order, please feel free to contact us. The product will supply to all over the world, such as Europe, America, Australia,Portugal , Porto ,Zurich , Saudi Arabia .Our items are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is to continue to earn your loyalty by dedicating our efforts to the constant improvement of our merchandise and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate.