7 Ultrasonic machines and tools, namely, ultrasonic welding machines and ultrasonic sieving attachments; ultrasonic machines and tools, namely, ultrasonic plastic welding equipment in the form of ultrasonic generators, convertors, boosters, controllers, horns and press, loading and unloading systems, ultrasonic metal welding equipment in the form of ultrasonic generator, convertors, boosters, controllers and press, ultrasonic cleaning machines and systems comprising ultrasonic generators, immersion box, tube resonator, material handling system and controller, and ultrasonic cutting and sealing equipment in the form of sieving generator, converter, ring resonator and connecting cable for laboratory use; accessories in the form of mechanical pressed and machined components, parts in the form of horn, sonotrodes, couplers, fixtures and control apparatus for all the aforesaid goods