7.2

Pig Iron

Iron ore is super heated in a blast furnace to make pig iron, which in turn is used to produce steel. The making of steel is a continuous process. Pig iron is moved from the blast furnace to the steel plant by railroad. The trains are operated by remote control.
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País: South Korea, United States of America

Tempo de execução: 30 minutos

Qualidade: HD

Lançamento: 2010

imdb rating 7.2

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