دومین همایش ملی صنعت سنگ: استخراج ، فرآوری و بازاریابی، اردیبهشت ۱۴۰۴

The Second National Conference of the Stone Industry covers topics across geology, mining engineering, mechanical engineering, civil engineering, electrical engineering, energy management, industrial engineering and systems, environmental engineering, international trade law, and marketing. It presents thematic and applied areas related to stone geology, extraction, processing, standards, environmental management, market development, and innovative technologies in the stone industry.