In a filament winding technique, {HEAD ~ filaments} are wound around {TAIL ~ a mandrel}, and the mandrel remains in the structure and becomes part, normally a structural part, of the article 
In a filament winding technique , { HEAD ~ filaments } are wound around { TAIL ~ a mandrel } , and the mandrel remains in the structure and becomes part , normally a structural part , of the article
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL 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