Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for 2-Naphthalenesulfonicacid, Naphthalene Sulfonate Formaldehyde , Sodium Salt (1:1) , Bio Flocculant ,Household Non Ionic Surfactant . Sincerely hope to build long term business relationships with you and we will do our best service for you. The product will supply to all over the world, such as Europe, America, Australia,Anguilla, Jeddah,Auckland, Colombia.All these products are manufactured in our factory located in China. So we can guarantee our quality seriously and availably. Within these four years we sell not only our products but also our service to clients throughout the world.