Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support for Sodium Hydroxide, Sodium Hydrosulphide Flake , Sodium Hydrogen Sulphide , Sodium Hydrosulphide 10/20/30ppm ,Sulfide material . We welcome customers all over the word to contact us for future business relationships. Our products are the best. Once Selected, Perfect Forever! The product will supply to all over the world, such as Europe, America, Australia,Slovenia , Sri Lanka ,France , Qatar .we are sincerely hope to establish one good long term business relationship with your esteemed company thought this opportunity, based on equal, mutual beneficial and win win business from now till the future.