1. Good heat dissipation effect; 2. Light weight and good metal performance, strong and durable; 3. It can meet the waterproof requirements of different levels such as IP65 / IP66; 4. It can meet the outdoor performance requirements such as 1000 hour salt spray test; 5. It is easier to meet the safety standards related to 3C certification; 6. According to different heat dissipation needs, the material can be increased by adopting special surface treatment (oxidation Spraying, polishing, etc.) and structural dimension adjustment of base materials are widely used.