en coltan (n)
― RelatedTo ⟶
Weight: 1.0
en tantalum Source: English Wiktionary
en coltan (n)
― RelatedTo ⟶
Weight: 1.0
en ore Source: English Wiktionary
en coltan (n)
― RelatedTo ⟶
Weight: 1.0
en niobium Source: English Wiktionary