The method includes hot rolling {TAIL ~ an extra low carbon steel slab} containing {HEAD ~ titanium} and columbium to sheet or strip, cold rolling, box annealing and temper rolling 
The method includes hot rolling { TAIL ~ an extra low carbon steel slab } containing { HEAD ~ titanium } and columbium to sheet or strip , cold rolling , box annealing and temper rolling
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH