ekstrudeeritud (mitterauasulamite puhul) või toruvaltspinkidel ümartoorikust kuum- või külmvaltsitud toru (vrd keevistoru), tube other than that made by bending over and welding the edges of a flat strip; may be made by extrusion (non-ferrous metals), or piercing a hole through a billet and then rolling down over a mandrel to form a tube of the required dimensions (compare: welded tube)