Changsha Double Best Industry Co ltd,Are dealing in the import and export business of organic and inorganic chemical raw materials since 1996 year.the main product have fireworks materials including Aluminium Powder,Ammonium Perchlorate,Barium Nitrate, Potassium Chlorate, Potassium Perchlorate, Potassium Nitrate ,Sodium Chlorate,Sodium Perchlorate etc,the other products have Borax ,Barium sulphate, Barium Carbonate, Barium Chloride,Sodium Silico Fluoride ,Sodium Metabisulphite, The Above Products Have Exported to European,Amercian,Africa,South-East Asia etc Countries and Area.