... method The BOF method involves (3) …………………………molten scrap steel in a furnace with new steel About 28 (4) ……………………… of the new product is recycled steel Steel mabe by th BOF method typically is used ... furnace and (7) …………………by electricity that arcs between two carbon electrodes Limestone and other (8) ………………….are added to the molten steel to remove impurities, steel (9) ………………………….by the EAF method...