After {TAIL ~ the isolation} of the heavy material, in process step V5, a size reduction of the remaining fractions takes {HEAD ~ place}, using a hammer mill MH 
After { TAIL ~ the isolation } of the heavy material , in process step V5 , a size reduction of the remaining fractions takes { HEAD ~ place } , using a hammer mill MH
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH