... .ISO9001 Jewelry laser spot welder,jewelry welding machine Jewelry Laser spot welder is used for perforation and spot welding of sand hole for ... AdvantagesFast, efficient, deep, little distortion, little affect area, quality welding, welding points free from pollution, and energy saving.Specifications Model ML ... source 220V±10%/50Hz/12A W200 Jewelry Laser spot welder,jewelry welding machine