… chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and …
Explanatory notes
… chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and … be rolled or drawn under very special conditions. * * * Unalloyed beryllium is used in the manufacture of windows … is also used for alloying with tin, aluminium and gold. (D) VANADIUM Vanadium is mainly extracted from the ores …