[Hebei Meishen Technology Co., Ltd. China Customized Expert of Magnesium Chemical Materials Hebei Meishen Technology Co., Ltd. production capacity 534000 tons,one of the largest light,active magnesium oxide and industrial grade,pharmaceutical grade,heavy magnesium carbonate and magnesium sulfate production base in the world, is The piomeer of Chinese Compound Magnesium,China Customized Expert of Magnesium Chemical Materials]