Automotive exterior mirror base housings fix mirrors to the vehicle body, requiring firm connection, weather resistance, and anti-vibration performance, adapting to high-speed wind resistance and outdoor climate changes. Traditional mechanical fastening leaves gaps, leading to mirror vibration and noise, while adhesive bonding has poor durability. DaokeDao laser welding provides a strong, weather-resistant joining solution for ABS and PC base housings, forming a continuous weld with shear strength ≥20MPa, withstanding high-speed wind pressure and vibration without loosening. The weld has excellent weather resistance, adapting to UV exposure, high temperature, and low temperature (-40°C to 85°C) without aging or cracking. The non-contact process does not damage the mirror surface, ensuring clear vision. The equipment supports curved surface welding, adapting to different mirror base designs, cycle time 8-11 seconds per unit, suitable for mass production of exterior mirror suppliers, improving mirror stability and service life.