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Publication of FR376631ApublicationCriticalpatent/FR376631A/fr
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
B21C25/00—Profiling tools for metal extruding
B21C25/04—Mandrels
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Engineering & Computer Science
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Mechanical Engineering
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FR376631D1907-04-121907-04-12Procédé et dispositif pour fabriquer des tuyaux avec des barres comprimées
ExpiredFR376631A
(fr)