Metallurgy 22 Materials science 4 Metal-work 4 Materiaalkunde 3 Metalurgia 3 Ore-dressing 3 Powder metallurgy 3 Archaeology 2 Arqueología 2 Materials 2 Me ́tallurgie 2 Mines and mineral resources 2 Physical metallurgy 2 Steel 2 Zeitschrift 2 51.99 materials science: other 1 Acero 1 Conferencia 1 Fer 1 Gold 1 Historia 1 History 1 Industrial applications 1 Industrie 1 Industrie et commerce 1 Iron industry and trade 1 Legeringen 1 Mate ́riaux 1 Me ́tallurgie extractive 1 Me ́tallurgie physique 1