According to the global ranking, Iran ranks fourth in terms of stone reserves, but due to technical weakness in processing, it has not been able to gain a good share of the export market of this mineral. Countries that benefit from a major share in global markets They have high technology. One of the most important factors in the economic efficiency of rocks is the extraction methods and technology. One of the important parameters in choosing the appropriate method for extracting building stones is to know the type of cut stone and its physical and mechanical properties. Using the experience of many years of presence at the level of a processing stone for exporting stones, Orang Gallery has selected the best extraction resources that are currently mined ..... One of the mines of this factory
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