Photo de stock - Blast furnace which turns coal into coke at SSAB Swedish Steel AB sheet steel in Luleå, it all starts with cooking imported coal to make coke in the coking plant; this process produces a lot of gas that is recycled to heat the steel mill and half the town of Luleå pop 45,000.

Photo de stock: Blast furnace which turns coal into coke at SSAB Swedish Steel AB sheet steel in Luleå, it all starts with cooking imported coal to make coke in the coking.

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