Business Daily - Elements: Cobalt - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds

Business Daily - Elements: Cobalt - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds


Elements: Cobalt

The metal in magnets and phone batteries - but is some of it being mined by children?

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