However, {HEAD ~ any other suitable means} for fixedly attaching {TAIL ~ the rods} to the plate may be used 
for fixedly attaching
However , { HEAD ~ any other suitable means } for fixedly attaching { TAIL ~ the rods } to the plate may be used
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH