We keep on with the basic principle of quality to start with, support very first, continuous improvement and innovation to meet the customers for your management and zero defect, zero complaints as the quality objective. To great our service, we offer the items with all the superior top quality at the reasonable selling price for factory, Sodium Hydrosulfide , Anhydrous , Sodium Sulfiide 60% ,sodium disulfide 60% Min . We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Indonesia , Bolivia ,British , Canberra .With excellent solutions, high quality service and sincere attitude of service, we ensure customer satisfaction and help customers create value for mutual benefit and create a win-win situation. Welcome customers all over the world to contact us or visit our company. We'll satisfy you with our qualified service!