Comparison Between Two Roll And Three Roll Sizing MillComparison Between Two Roll And Three Roll Sizing Mill Rolling metalworking Wikipedia With the advancement of technology in rolling mills the size of rolling mills grew rapidly along with the size of the products being rolled One example of this was at The Great Exhibition in 1851 where a plate 20 feet long 3 ½ feet wide and 7/16 of an inch thick and weighing 1 125 pounds was