Cobre y aleaciones de cobre. Aleaciones madre.
Copper and copper alloys. Master alloys
Cuivre et alliages de cuivre. Alliages-mères
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77.120.30 / Copper and copper alloys
CTN 131 - Copper and copper alloys
EN 1981:2003 (Identical)
Cancel: UNE-EN 1981:1999
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