Being supported by an innovative and experienced IT team, we could present technical support on pre-sales & after-sales service for Sodium HydroSulphide and Na2s, Colorless To Light-Yellow Liquid , Nitrocellulose , Sodium Sulfide Flakes ,natriumhydrogensulfid hydratisiert . If you are interested in any of our products, please feel free to contact us for more details. We hope to cooperate with more friends from all over the world. The product will supply to all over the world, such as Europe, America, Australia,St. Petersburg , Turkey ,Melbourne , Malta .We have been in operation for more than 10 years. We are dedicated to quality products and consumer support. We currently own 27 product utility and design patents. We invite you to visit our company for a personalized tour and advanced business guidance.