Belt reinforcing members can be of {HEAD ~ a metallic or textile material standard} in {TAIL ~ the art} 
in
Belt reinforcing members can be of { HEAD ~ a metallic or textile material standard } in { TAIL ~ the art }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL