| C | Sektion C — Chemie; Hüttenwesen | CHEMISTRY; METALLURGY | |||||
| Hüttenwesen | METALLURGY | ||||||
 | C21 | Eisenhüttenwesen | METALLURGY OF IRON | ||||
 | C21B | Gewinnung von Eisen oder Stahl (Vorbehandlung von Eisenerzen oder Schrott C22B 1/00) | MANUFACTURE OF IRON OR STEEL (preliminary treatment of ferrous ores or scrap C22B 1/00) | ||||
 | C21B 11/00 | Roheisengewinnung, außer in Hochöfen [1, 2006.01] | Making pig-iron other than in blast furnaces [1, 2006.01] | ||||
| C21B 11/08 |
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