http://inspire.ec.europa.eu/codelist/CommodityCodeValue/hafnium
2015-08-18 18:11 PM CEST
hafnium
hafnium
Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals. - http://en.wikipedia.org/wiki/Hafnium
Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals. - http://en.wikipedia.org/wiki/Hafnium
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