... guide device from Japan, four-point level of design for chassis, it's convenient to operate. 3, the ... , cylinder, transducer three in one direct-drive, high welding stability. 7, this machine is especially adapt to used ... microelectronics workpiece welding. 8, it is also suitable for precision welding of workpieces, riveting, embossing, dots and other welding processes. ultrasonic welding machines