metallurgy steel 332 iron 48 alluminium 41 metals 38 mining 35 history 32 more ... metalurgie 28 analytical chemistry 19 alluminium alloys 19 chemistry 18 foundry industry 16 ferrous and steel metallurgy 15 cast irons 15 non-ferrous metals (metallurgy) 15 mechanical engineering 15 zpracování kovů 14 blast furnaces 13 hornictví 12 inorganic chemistry 11 mining machine industry 11 chemical industry 11 mineralogy 11 silver 11 pig iron 11 coal 11 chemical technology 10 brown coal 10 ferrous metallurgy 10 metallurgical works 10 less ...