... .ISO9001 Jewelry laser spot welder,jewelry welding machine Jewelry Laser spot welder is used for perforation and spot welding of sand ... from the U.K. is employed, corrosion resistant, high temperature resistant, efficient in electrical / optical conversion. 3 ... AdvantagesFast, efficient, deep, little distortion, little affect area, quality welding, welding points free from pollution, and energy saving ...