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