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coltan
0:04:32
Mining Coltan in the DRC
0:08:09
Il coltan è essenziale per gli smartphone, ma a quale prezzo? Lo sfruttamento delle miniere in Congo
0:01:10
Qu’est-ce que le coltan?
0:02:43
Conflict and Coltan in Eastern Congo
0:04:08
Congo Electric Stones
0:00:57
Coltan for sale, Tantalum, Niobium, Tantalite- columbite available for supply in the USA
0:00:48
Coltan
0:02:33
Coltan: Kenya's New Goldmine
0:11:15
Austin & Colton Gunn AEW Unrivaled Series 16 Unboxing & Review!
0:05:05
Will local Kenyans benefit from lucrative coltan mining? • FRANCE 24 English
0:01:34
Coltan
0:06:17
Special report : Inside the Congo cobalt mines that exploit children
0:03:45
Kimyan Law - Coltan
0:04:32
Coltan: Conflict minerals in Congo
0:16:12
Minas de Coltán
0:03:45
Coltan
0:01:23
O coltan
0:01:44
coltan ore processing plant/Tantalum Niobium beneficiation
0:13:29
El TÁNTALO, ¿el METAL MÁS CONFLICTIVO?
0:04:38
Le coltan, minerais de conflit au Congo
0:04:08
Kongo: Kampf um Koltan
0:03:05
El negocio del coltán
0:01:09
Coltan: A Conflict Mineral
0:01:34
Technologies : le coltan, nerf de la guerre en RDCongo
Вперёд
0:04:32
0:08:09
0:01:10
0:02:43
0:04:08
0:00:57
0:00:48
0:02:33
0:11:15
0:05:05
0:01:34
0:06:17
0:03:45
0:04:32
0:16:12
0:03:45
0:01:23
0:01:44
0:13:29
0:04:38
0:04:08
0:03:05
0:01:09
0:01:34