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Nickel recovery from ore
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Process of directly reducing iron ore containing nickel
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Electric induction furnace
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Tilting furnace roof
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Method of making steel
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Treatment of alumina-magnesiachromite ore
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Electric induction furnace
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Heavy current switching apparatus
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Electric furnace
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Producing and melting sponge iron
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Electric furnace electrode holder
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Method of melting
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Selective reduction
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Electric furnace with cooling means
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Electric reduction furnace
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Electrode holder for arc furnaces
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Electrothermic reduction process
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Electric arc furnace and crane structure
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Apparatus for casting
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Electric furnace and voltage control
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