For restoring and for achieving a gap free press surface, {HEAD ~ three open rings} having {TAIL ~ gaps} staggered relative to one another are arranged around the press parts  
having
For restoring and for achieving a gap free press surface , { HEAD ~ three open rings } having { TAIL ~ gaps } staggered relative to one another are arranged around the press parts
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH