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TUBES DE VALENCIENNES DES
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TUBES DE VALENCIENNES DES
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Application filed by TUBES DE VALENCIENNES DESfiledCriticalTUBES DE VALENCIENNES DES
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Publication of FR450674ApublicationCriticalpatent/FR450674A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
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FR450674D1912-01-241912-01-24
Method and apparatus for drawing tubes
ExpiredFR450674A
(en)