DIFF Subgroup
C21C 5/5264 Full Title
Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel > Manufacture of steel in electric furnaces (; electric heating per se H05B)
C21C 5/5264 Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel > Manufacture of steel in electric furnaces (; electric heating per se H05B)