1. valtspingi valtsraam, milles toimub kuumvaltsimisel moodustunud tagi (tavaliselt rauatagi) purustamine (valtsmetalli 5-20 % plastselt deformeerides) ja selle eemaldus; 2. tagi eemaldusseade, kus to, 1. a two-high rolling mill that loosens the furnace scale and removes it with high-pressure water jets; 2. a machine applying bend stress to strip steel in which the front and rear bridle roll applies