... pull force Ultrasonic Metal Welding Machine(Heat Sinks for Car) Product Requirement: 1.FOR ULTRASONICALLY WELDED MATERIAL JOINT.WELD ... .4, man-machine interface control, multi-parameter storage.5, energy detection mode, to ensure consistency of weld quality.6, stepless ... scale cooling block.6, electromagnetic switches, non-fuse switch high current contact, dissimilar metal sheets of mutual melting.7, ...