{HEAD ~ A device} for acting on a material web using ultrasonic includes an ultrasonic unit which has a converter a booster and a sonotrode, and {TAIL ~ a counter tool} 
includes
{ HEAD ~ A device } for acting on a material web using ultrasonic includes an ultrasonic unit which has a converter a booster and a sonotrode , and { TAIL ~ a counter tool }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL