tonnes of ore grading 10% potassium chloride metal. "Economia resurselor minerale in contextul dezvoltarii durabile" (in Romanian). docstoc.com. 2012. Retrieved... 1 KB (60 words) - 02:48, 14 April 2024 |
National Coal Company which was set up in 1957. "Economia resurselor minerale in contextul dezvoltarii durabile". docstoc.com. 2012. Retrieved 2013-04-24... 1 KB (62 words) - 16:25, 14 April 2024 |