Ruka hadi maudhui
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Rikaz

Madini

2 bidhaa

Coltan Grade 1

Madini

Koltani Grade 1

Koltani Tantalamu Koltani Grade 1

US$ 1,500 – US$ 2,200 / tonFungua
Coltan Grade 2

Madini

Koltani Grade 2

Madini ya Koltani Tantalamu

US$ 1,500 – US$ 2,200 / tonFungua

Tunatumia kidakuzi kimoja kidogo ili takwimu zetu ziwe sahihi. Faragha