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    Watch rock turn into steel at 3,000 degrees 

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Watch rock turn into steel at 3,000 degrees 

See how train tracks are made as giant ovens turn iron into hot steel that's molded, rolled and finally cut into rails. 

Watch rock turn into steel at 3,000 degrees 

See how train tracks are made as giant ovens turn iron into hot steel that's molded, rolled and finally cut into rails.