Features: Well packed Safe to use Effectiveness Reliable nature Hygienically processed Longer shelf life Quick Details: Product Name : Magnesium Powder Particle Size : upon your request Chemical Composition : Mg â?¥ 99% Feature : Sliver powder,well packed,safe to use,effectiveness,hygienically processed Standard : GB 5149-2004 Dangerous : Flammable Product Description: Rests angle (IC): smaller than 26�° Burning-resistant time at high temperature:not less than 15---18 second at 1000�°C Density of relax stack:1.0g/cm3 Burning point: in average, not lower than 600 �°C. Application: According to different application scenarios, the size of magnesium powder is as follows: 100 mesh, 150 mesh, 200 mesh for aviation, aerospace, military industry. It also can be customized by your inquiry