المخاطر المهنية في صناعة التعدين
المخاطر الصحية والبيئية للتعدين الاهلي للذهب – izzoff. Dear Izzeldin These are very fruit full information that I have read since the appearance of minerals mainly gold mining in Sudan recently, the sadness is that there are hundreds of people know what negative aspects of traditional mining are, but for time being no one could dare to say that, because ...