MINERS DATABASE | تیر ۱۳۸۶
The boring machine, named 'Aurora', started its work from a construction shaft that was 25 metres deep, the so-called start shaft. In view of the boring machine's size, the start shaft measured 30 metres in width and over 80 metres in length. ... تصاویر مربوط به سنگ شکن . در حال تکمیل میباشد.....