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：2025/11/20
pig iron
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A type of crude, brittle iron shaped like a block, unsuitable for working but suitable for casting, commonly used as an industrial raw material.
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pig iron
After the blast furnace cooled, the workers loaded the newly cast pig iron onto wagons to be transported to the foundry.
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After the blast furnace cooled, the workers loaded the newly cast pig iron onto wagons to be transported to the foundry.
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