Roasting (metallurgy)
Roasting is a process of heating an ore under flowing air. It is a step in the processing of certain ores.
Roasting is a process of heating an ore under flowing air. It is a step in the processing of certain ores.
Roasting is a process of heating an ore under flowing air. It is a step in the processing of certain ores.
Source: Wikipedia "Roasting (metallurgy)" · CC BY-SA 4.0
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