WS of a steel manufacturing plant, conveyer belt and workers below. CU of hot steel being flattened numerous times, going back and forth. ECU of steel going through the compressor. MS of two workers at the controls. Moving CU of the steel being processed. MS of worker at a control board. Moving WS of steel passing through the length of the conveyer belt. WS of steel passing over a conveyer belt. MS of a giant slicers, cutting the pieces of finished steel into smaller portions. CU of a worker standing by the slicer. CU of a worker at the controls. ECU of the slicer itself. MS of the workers taking a break. VO of narrator describing the process and how essential iron is to a vast network of human industries.