Metal mg magnesium powder for industry Index Shop sign Chemical component Mg at least Impurities no more than Fe Cl- H2O Others FM1 98.5 0.2 0.005 0.1 0.2 FM2 FM3 FM4 FM5 For our product: Particle size range: -60 mesh, -120mesh. Purity of Mg: 99.5% Metal mg magnesium powder for industry Product Introduction Because of low weight and good mechanical and electrical properties, magnesium is widely used for manufacturing of mobile phones, laptop and tablet computers, cameras, and other electronic components.