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Alloy steel prodn. - blowing refining gas onto melt at inclined angle
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Processing spent metal etching and passivating baths - by neutralising and work up, without causing environmental pollution
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Hot rolling mill - for semifinished and bar material
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Production of alloy steels
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Martensitic stainless steel
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Method for producing improved martensitic chromium steel
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Process for submerged arc welding of cold-tooth nickel steels
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Metallic door frame arrangement
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