{HEAD ~ A plurality} of {TAIL ~ wear strips} 14 are aligned along a longitudinal direction forming a wear bar 15 
of
{ HEAD ~ A plurality } of { TAIL ~ wear strips } 14 are aligned along a longitudinal direction forming a wear bar 15
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH