What typifies the base industries, steel being one of them, is that the nature of their process is to have divergence of products at each stage of production. For example, in the rolling department, they produce many different plates from the same type of steel. Plates different in thickness. Once you produce a two-inchthick plate, and later you change your mind and want to turn it into a one-inch plate, it's too late, the steel is already cold. It's the same in the slitting department, where they slit the plates to size. If you slit a plate to be seventy inches wide, you cannot later make it
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