The utilization of coal mine holes in Sawahlunto

Workers measure the gas content when the maintenance of the coal mine hole Sawahluwung in Sawahlunto, West Sumatra, Thursday (7/9/2023). PT Bukit Asam (Tbk) The Ombilin Mining Unit (PTBA UPO) opens an unproducted coal mine hole to become an educational hole for the needs of academic practice and elimination. ANTARA PHOTO/Iggoy el Fitra/tom.,

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