The method 1 wherein {TAIL ~ the strip} of {HEAD ~ foam rubber} has a rectangularly shaped cross section 
The method 1 wherein { TAIL ~ the strip } of { HEAD ~ foam rubber } has a rectangularly shaped cross section
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH