some of our big mines, such as misr mines, sarcheshmeh, midok, sangun in tabriz, warzaga, such as chadorremluon stone, gol gohar, central stone. why am i calling these as mines? big? because most of our economy is in the mining sector, almost on steel, copper and zinc, i swear. most of it forms our civil economy . in our big mines, we first need to plan to upgrade from our current conditions to a higher level . they are working . my point is that for mines as big as egypt, which is moving deep in the source with a history of almost 40 years, we have to go to the trap of 240 pas tracks. so, how much is 136 tons now ? mines like gohar zemin, which is going deep in phase 3, gohar 3 , we definitely need heavier machines. in songun, we don't have the possibility to use a dump truck under 100 tons, so with a distinction. based on the conditions of our mines and those that constitute the serious economy of the mining sector, first of all, there should be a separation. dear mr. aminzadeh, please see that we need to change the design of our mines in order to harvest 204 tons of trucks. let's decide to