datistan's police force society, that very good measures have been taken in anwar, anwar temli , thee president of mines and materials processing. materials ministry side of 40% reduction in the productivity of mines due to wear and tear of machinery, khabar dada mohtashmipour added that more than half of the country's mining machinery fleet is worn out. promises of four-wheeled mines. 36 thousand mining machines, which are the first link in the mining exploitation chain. but operators have a big challenge. our machines are depreciated, about 15,000 of them are more than 20 years old. using these in this situation with the existing situation can incur a very high cost for the fists . wear and tear of machinery has reduced productivity. the most important thing is that it is all about the price mineral extraction is effective. it is effective in the amount of fuel consumption that is allocated to it. about 1,300 mining machines were purchased in par salal. but miners and contractors need about four billion dollars of credit to modernize this fleet or more than this number. the issues