CA2032020A1
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Method for producing ultra clean steel
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US5004495A
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Method for producing ultra clean steel
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US4991752A
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Method and apparatus for stirring and pouring molten metal in a neutral atmosphere
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CA1313952C
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Stirring brick with shaped gas volume control openings
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CA1319822C
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Slag controlling device for basic oxygen furnaces
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CA1311920C
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Externally replaceable stirring plug for molten metal vessels
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US4840355A
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Slag controlling device for basic oxygen furnaces
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US4858894A
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Stirring block with unidirectional grain structure having improved erosion resistance
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US4840354A
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Stirring brick with shaped gas volume control openings
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US4854553A
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Self shielding lance
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CA1296524C
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Slag retaining device with vortex inhibitor
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US4740241A
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Dual action lance for ladles
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US4709748A
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Protective sleeve for the shroud of a hot metal ladle
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US4725047A
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Device for introducing gas into molten metal
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CA1250142A
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Device for introducing gas into molten metal
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CA1273775A
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Coated refractory shapes useful in bottom pouring of ingot molds
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US4709903A
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Slag retaining device for use in converters, ladles, or the like
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CA1265675A
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Slag retaining device for use in converters, ladles, or the like
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CA1243844A
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Method and agents for producing clean steel
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US4586956A
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Method and agents for producing clean steel
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