RT @BurggrabenH: When you have to dig up 1 tonne of ore to get 10kg of copper - which does not include overburden - you understand why the… 0 atbildes
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Maris Noviks (2023-03-07 10:19:40) |
RT @BurggrabenH: When you have to dig up 1 tonne of ore to get 10kg of copper - which does not include overburden - you understand why the… | |