• 2022-06-07 问题

    The normalizing temperature of subeutectoid steel is generally ( ). A: Acl+30-50°C B: Accm+30-50°C C: Ac3+30-50°C D: Ar3+30-50℃

    The normalizing temperature of subeutectoid steel is generally ( ). A: Acl+30-50°C B: Accm+30-50°C C: Ac3+30-50°C D: Ar3+30-50℃

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