SHIJIAZUANG SHENLONG CHEMICALS CO.,LTD Is a collection of production, scientific research and the chemical industry trade enterprises, main products are Precipitated Barium Sulphate,Zinc Oxide ,Sodium Sulphide,Sodium Hydrosulphide,Sodium Anhydrous sulfite,Sodium Metabisulphite,Sodium Bicarbonate,Caustic Soda Ash and Pearls etc.