Automotive exterior fender decorative trims enhance exterior aesthetics, requiring smooth appearance, weather resistance, and firm connection, adapting to outdoor UV exposure and car wash friction. Traditional adhesive bonding has poor durability, easy to fall off and discolor, while mechanical fastening leaves visible screws. DaokeDao laser welding realizes seamless connection between decorative trims and fender main bodies, suitable for ABS and PC materials, with no weld marks, consistent color and luster, enhancing vehicle exterior grade. The weld has high weather resistance, withstands long-term UV exposure without fading, and strong connection, not easy to fall off. The welding process is efficient, no need for glue, reducing costs and environmental pressure. The equipment adapts to curved surface welding, supporting multi-model flexible production, cycle time 8-11 seconds per unit, helping automakers improve exterior brand image.