Thus, {HEAD ~ the invention} is best suited to robot welding in {TAIL ~ order} to improve productivity 
is best suited in
Thus , { HEAD ~ the invention } is best suited to robot welding in { TAIL ~ order } to improve productivity
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH