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Schoeller Bleckman Stahlwerke AG
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Schoeller Bleckman Stahlwerke AG
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Publication of FR890256ApublicationCriticalpatent/FR890256A/fr
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22C—ALLOYS
C22C38/00—Ferrous alloys, e.g. steel alloys
C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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FR890256D1941-04-211943-01-19Acier pour outils de perforatrices garnis de métal dur et pour outils soumis à des efforts analogues
ExpiredFR890256A
(fr)