1.Jewelry Laser spot welder 2.24-hour continuous work 3.cavity's ... power 5.ISO9001 Jewelry laser spot welder,jewelry welding machine Jewelry Laser spot welder is used for perforation and spot ... processing, and welding of small-sized parts.Characteristics1.Energy, pulse width, frequency and facula can be adjusted within a ... source 220V±10%/50Hz/12A W200 Jewelry Laser spot welder,jewelry welding machine