Separated from the slag,the molten iron is tapped(分流)from the bottom of the furnace. Running from troughs(槽)，into specially lined,pure ladle cars(钢水罐车) The basic oxygen furnaces(BOF's)can produce a heat(>200 tons of prime steel)in 35-50 min.Here begins the intricate process of refining the iron into custom tailored steel.Separated from the slag, the molten iron is tapped(分流) from the bottom of the furnace. Running from troughs(槽), into specially lined, pure ladle cars(钢水罐车). The basic oxygen furnaces (BOF's) can produce a heat (>200 tons of prime steel) in 35-50 min. Here begins the intricate process of refining the iron into custom tailored steel