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Roehrenwerk Raunheim G M B H
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Roehrenwerk Raunheim G M B H
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Application filed by Roehrenwerk Raunheim G M B HfiledCriticalRoehrenwerk Raunheim G M B H
Application grantedgrantedCritical
Publication of FR342732ApublicationCriticalpatent/FR342732A/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
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
B21C37/08—Making tubes with welded or soldered seams
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR342732D1904-04-291904-04-29Procédé et dispositif pour la fabrication des tuyaux soudés
ExpiredFR342732A
(fr)