https://www.zazemiata.org/wp-content/uploads/2018/02/zzlogo.png00Gerganahttps://www.zazemiata.org/wp-content/uploads/2018/02/zzlogo.pngGergana2020-02-24 11:36:062023-01-25 11:48:08Report on geology and available coal reserves in the deposit Maritsa Iztok Mines
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