... > B Business economics > B.05 Materials management and logistics > B.05.01 Procurement > Materials > Steel > High-grade steel

... > B Business economics > B.06 Production management > B.06.02 Factor input > Materials > Steel > High-grade steel

... > N Related subject areas > N.10 Natural sciences and technology > N.10.04 Technology > Materials > Steel > High-grade steel

P Commodities > P.07 Metals > Steel > High-grade steel

P Commodities > P.07 Metals > High-grade steel