The panel has at least one outer edge which is provided with a rim in {HEAD ~ order} to form {TAIL ~ a shock absorbing edge} 
to form
The panel has at least one outer edge which is provided with a rim in { HEAD ~ order } to form { TAIL ~ a shock absorbing edge }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL