Common metals and their alloys, ores, including lump ore, pellets and finely divided ore; iron ore; ferrochromium (chrome iron); zirconium; laminated and casted building materials; railway tracks and other railway construction materials of metal; goods of common metal not included in other classes

Treatment of materials, including processing of ores and minerals; treatment of gravel and concrete for others; refinement of granite into macadam; treatment of steel for others; sorting, benefication (concentrating) and pelletizing of ores