The device has a clamp arrangement for holding {HEAD ~ a sample} of {TAIL ~ foam sheet material} 
of
The device has a clamp arrangement for holding { HEAD ~ a sample } of { TAIL ~ foam sheet material }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL