Subsequent process step V4 of the separation of coarse components substantially reduces the wear in {HEAD ~ the next process step V5} of {TAIL ~ the main size reduction} 
of
Subsequent process step V4 of the separation of coarse components substantially reduces the wear in { HEAD ~ the next process step V5 } of { TAIL ~ the main size reduction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL