purified steel

См. также в других словарях:

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• ingot iron — n. a ductile, rust resistant, highly purified steel with the impurity level below 0.15% …   English World dictionary

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• manganese processing — Introduction       preparation of the ore for use in various products.       Manganese (Mn) is a hard, silvery white metal with a melting point of 1,244° C (2,271° F). Ordinarily too brittle to be of structural value itself, it is an essential… …   Universalium