Exploring:, looking for places where copper can be found in the ground., extracting, removing the copper ore (rock with copper) from the earth., crushing , breaking the rock into very small pieces or powder., concentrating, separating the valuable copper from the waste rock., smelting, heating the copper at very high temperatures to remove impurities., refining, cleaning the copper further to make it very pure and ready to us.

ustvaril/-a

Lestvica najboljših

Oglejte si najboljše igralce

Lestvica vodilnih

Vizualni slog

Možnosti

Preklopi predlogo

Lestvica najboljših

Oglejte si najboljše igralce
)
Obnovi samodejno shranjeno: ?