Our company owns the magnesium production line. The raw material{dolomite} which is the qualified material crushed by the crusher is calcined into white by rotary kiln, cooled by the cooling machine and then mixed evenly with silicon powder (75%) and silica powder (including GaF2 fluorite=95%). Being grinded into powder by ball mill, the marble machine will shape it as a ball which will be put into the reducing furnace after being equipped with the heat-resistant and stainless steel reduction jar. Then crude magnesium is restored and formed under the temperature of 1200-1250 degree celsius and vacuum of -1.33PAa. By solvent refining, ingot casting and superficial treatment, the magnesium ingot is formed.