6 CHEMICAL AND METALLURGICAL PRODUCTS FOR THE STEEL AND FOUNDRY INDUSTRY, NAMELY, FERRO ALLOYS AND SPECIAL ALLOYS FOR THE PRODUCTION OR REFINING OF STEEL, AS WELL AS INOCULATION AND TREATMENT ALLOYS FOR CAST IRON MELTS, OPTIONALLY IN THE FORM OF CORED WIRES; AND CORED WIRES AND ALLOYS FOR THE TREATMENT OF REFINING OF STEEL MELTS AS WELL AS FOR INOCULATION AND FOR THE MAGNESIUM TREATMENT OF CAST IRON MELTS