Ingot ingot # 1: Grade Mg99.90, chemical composition Mg≥99.90%, iron ≤0.04%, silicon ≤0.02%, aluminum ≤0.02%, manganese ≤0.03%, nickel ≤0.001%, copper ≤0.004%, impurity aggregate ≤0.10%. NW: Each tablet 7.5kg, 1-1.5 tonnes per bundle. Packing: aluminum and other strapping, pallet Holds. Application: mainly in the production of magnesium alloy, aluminum production, steel desulfurization, four major areas of military aviation, also used in the rare earth alloy, metal reduction, chemical industry and instrument manufacturing.