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      Qinghai Best Magnesium Co., Ltd. is a integrated enterprise with high-technology in which can handle the business of researching, producing, selling, importing and exporting. Simultaneously, it can produce 20 thousand tons of highly purified magnesium hydroxide and 40 thousand tons of anhydrous calcium chloride. Qinghai Best Magnesium Co., Ltd. is the largest manufacturer of highly pur  Click for details>>