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Ultrasonic plastic welding machine can perform plastic welding, embedding, forming, riveting, welding, cutting, stitching and other operations. It can be used for multiple applications on one machine only by replacing the welding head.
link:https://www.altrasonicautomation.com/ultrasonic-spot-welding-machine/ultrasonic-handheld-spot-welder-with-digital.html
Ultrasonic Handheld Spot Welder With Digital Generator For Welding Automotive Parts