The five-layer lamination process increases the anti-deformation force by 60%. Metal electroplated decorative lines (B/C frame door type), light luxury and attractive; Aksu resin powder electrostatic adsorption enhances corrosion resistance, anti-aging, scratch resistance, outdoor weather resistance for 10 years, and also has anti-mold and antibacterial effects. The 220-degree high-temperature baking process ensures strong adhesion. Laser corner welding process ensures high structural strength. It is formed by one-piece welding without any welding seams. The door panel noise reduction process, combined with the handleless anti-collision rubber strips, forms two layers of noise reduction. Matte, fingerprint-free, anti-static microbead glossy steel plate.