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1. Physical properties
They are listed in the table at 1 .
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Physical properties
Physical properties
Natural resources
Bibliography
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Websites
Tantalum
http://www.webelements.com/tantalum/
http://webmineral.com/chem/Chem-Ta.shtml
Niobium
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Ferroniobium suppliers
Cambior (Niobec) http://www.cambior.com/
The Ultimate Scientific and Technical Reference
A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects
