Description
4000 x 3000 px
Coal layer extraction after all the overburden has been removed in an opencast coal mine in Colombia. A big volume of overburden has to be removed in an opencast mine to uncover the usable coal seams.
€9.95
4000 x 3000 px
Coal layer extraction after all the overburden has been removed in an opencast coal mine in Colombia. A big volume of overburden has to be removed in an opencast mine to uncover the usable coal seams.
4000 x 3000 px
Coal layer extraction after all the overburden has been removed in an opencast coal mine in Colombia. A big volume of overburden has to be removed in an opencast mine to uncover the usable coal seams.
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