B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
B21B39/10—Arrangement or installation of feeding rollers in rolling stands