... time processing, little dropping of molten iron temperature. over 99% Pure Magnesium Powder:Using the high technology, the company is engaged in ... has the granularity of 2mm-0.0035mm(10-400meshes), magnesium content of over 99.5% and loose thickness of 0.1-0 ... , polycrystalline silicon, and casting of metallurgical powder as well. over 99% Pure Magnesium Powder