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
Cage universelle a colonnes ouvertes,transformable en cage du o et vice versa,extensible en hauteur et en largeur,pour le laminage de profiles tels que poutrelles h et i,rails,palplanches et autres profiles similaires