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
B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
B21C37/15—Making tubes of special shape; Making tube fittings
B21C37/152—Making rifle or gun barrels
B21C37/153—Making tubes with inner or outer guides
Verfahren zur herstellung eines hohlteils aus einem metallischen werkstoff und verwendung dieses verfahrens zur herstellung einer fahrwerksstange oder eines fahrwerkträgers
Verfahren zum Rohrwalzen, welches es ermöglicht, die Leistung eines Kaltpilgerschrittwalzwerkes zu erhöhen, und Vorrichtung zur Bewerkstelligung des Verfahrens