Automotive exterior body trim strips are decorative and protective components, requiring smooth appearance, weather resistance and firm fit, adapting to outdoor UV exposure, temperature changes and car wash friction. Traditional adhesive bonding has poor durability, easy falling off and discoloration. DaokeDao laser welding realizes seamless connection between trim strips and body, suitable for ABS and PC materials, with no weld marks, consistent color and luster, enhancing vehicle exterior aesthetics. The weld has high weather resistance, withstands long-term UV exposure without fading and cracking, firm connection, not easy to fall off. The welding process is efficient, no need for glue, reducing costs and environmental protection pressure. The equipment adapts to long strip and curved trim strip welding, supporting multi-model flexible production, helping automakers improve exterior appearance and brand image.