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      Chongqing Barium Manganese Strontium Chemical Co., Ltd. , based on the rich mineral resources of barium, manganese and strontium in Chongqing, China, is specialized in the research and development, customization, selling and foreign trade of barium, manganese and strontium salts products. Our main products: barium hydroxide, barium chloride, barium carbonate, barium nitrate, barium acetate, barium sulfate, strontium chloride, strontium carbonate, manganese chloride and natural barium carbonate (witherite) and so on.  The annual sales of all products are more than 200, 000 tons. We have import and export operations right, ......