B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
B21C3/02—Dies; Selection of material therefor; Cleaning thereof
B21C3/08—Dies; Selection of material therefor; Cleaning thereof with section defined by rollers, balls, or the like
Unite d'entrainement pour cable de scie, procede et dispositif pour realiser, a partir de lingots semi-conducteurs, des pastilles circulaires semi-conductrices avec au moins une surface plane
Procede pour elargir la gamme de production d'une installation de laminage de produits metalliques et installation pour la mise en oeuvre du procede