The matting 1, wherein {HEAD ~ the core material} comprises {TAIL ~ PVC foam} or phenolic foam 
The matting 1 , wherein { HEAD ~ the core material } comprises { TAIL ~ PVC foam } or phenolic foam
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH