continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for China Sodium Sulfide and Sodium Sulphide yellow flakes, natriumvetysulfidi hydratoitu , strength of NAHS fluid , sulfureto de sódio hidratado ,solfuro di sodio idratato . We warmly welcome you to build cooperation and generate a brilliant long term together with us. The product will supply to all over the world, such as Europe, America, Australia,Naples , Angola ,Bandung , Paraguay .All the employees in factory, store, and office are struggling for one common goal to provide better quality and service. Real business is to get win-win situation. We would like to provide more support for customers. Welcome all nice buyers to communicate details of our products with us!