Multi head machines are assembled in accordance with the number of grinding heads on {HEAD ~ the basis} of {TAIL ~ frame modules} which are similar in shape 
of
Multi head machines are assembled in accordance with the number of grinding heads on { HEAD ~ the basis } of { TAIL ~ frame modules } which are similar in shape
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH