{TAIL ~ The connection} between {HEAD ~ the various parts} is preferably achieved by means of ultrasonic sealing 
{ TAIL ~ The connection } between { HEAD ~ the various parts } is preferably achieved by means of ultrasonic sealing
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH