At present, passive armor and reactive armor are the two most widely used armor applications. In the mechanism of action, the passive armor to rely on its own armor characteristics against the projectile attack, and reactive armor is usually used to stimulate the armor material to produce kinetic energy response, but also counter-attack on the projectile. Armor use what kind of material, generally in accordance with the design of the use may be, generally use high-strength materials, 5456 aluminum plate is suitable for armor plate.