7075 aluminum plate is a cold-treated forging alloy with high strength and high hardness, which is far better than mild steel. 7075 aluminum plate is one of the strongest commercial alloys, with general corrosion resistance, good mechanical properties and anodic reaction. The fine grains make the deep drilling performance better, the tool wear resistance is enhanced, and the thread rolling is more distinctive. When the density requirement is small, the hardness requirement is relatively high. The preferred metal material.