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C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
Anordnung zur Regelung der Kühlintensität in der Kühlzone kontinuierlich arbeitender Glühöfen zur Wärmebehandlung von Werkstücken, insbesondere von Rohren aus Gußeisen
In die Feuerraumwand rauchverzehrender Feuerungsanlagen einsetzbarer, aus aneinandergereihten ringfoermigen Platten bestehender Rohrkoerper zur Einleitung eines Dampfluftgemisches in den Feuerraum