Stationary and mobile ultrasonic welding machines; ultrasonic welding actuators, namely, torsional and linear actuators; ultrasonic welding generators; machine parts for ultrasonic welding machines, namely, ultrasonic welding tongs and ultrasonic welding heads; parts and components of welding machines, namely, sonotrodes, in particular torsion sonotrodes for ultrasonic welding machines, ultrasonic welding equipment in the nature of boosters for ultrasonic welding machines and converters for u...