Because of the extension of the middle spacers 209 beyond the edges of the base sheets, {HEAD ~ the face coating strips} take on {TAIL ~ a well defined molded shape} 
take on
Because of the extension of the middle spacers 209 beyond the edges of the base sheets , { HEAD ~ the face coating strips } take on { TAIL ~ a well defined molded shape }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL