Tantalum Molybdenum
Tantalum
Tantalum coltan
Tantalum pentoxide, niobium pentoxide, tantalum rod, niobium rod, tantalum powder, niobium powder, tantalum bar, niobium bar
Manganese, steel, tantalum.
Aluminium ingots, scrap, tantalio
Tin ore (sn), niobium (nb) ore and tantalum (ta) ore
Tantalum, tantalite, columbite