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GB/T 7737-2007 English PDF (GBT7737-2007)

GB/T 7737-2007 English PDF (GBT7737-2007)

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GB/T 7737-2007: Ferroniobium
This Standard specifies technical requirements, test methods, inspection rules, packaging, storage, marks and quality certificate of ferroniobium. This Standard is applicable to ferroniobium that is made from niobium pentoxide and niobium concentrate and is used for steelmaking or casting as an additive, for electrode as alloying agent, magnetic material.

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