7075 aluminum is an ultra-high strength Al-Zn-Mg-Cu alloy, widely recognized as a high-performance structural material. It features excellent strength-to-weight ratio, great fatigue resistance, and good machinability. After heat treatment, it achieves extremely high mechanical properties, making it suitable for heavy-duty and load-bearing applications. It has stable performance and reliable durability, though it requires surface protection for better corrosion resistance. It is one of the most representative alloys in high-strength aluminum series.