Dayyani Industrial Machinery Manufacturing Company began its operations in 1974 by manufacturing electrical machinery in a facility covering approximately 50 square meters. The quality of its products and customer satisfaction led to the expansion of its product portfolio and an increase in orders.In 1980, the factory was relocated to the Fadaeian Eslam Industrial Area in Tehran, occupying approximately 1,000 square meters. At this stage, mechanical and hydraulic shearing machines were added to the company’s product range.In 1994, following further production expansion and an increase in the customer base, the company moved to the Abbasabad Industrial Estate, where it occupied an area of approximately 5,000 square meters. In 2013, it subsequently relocated to a new factory with a total area of 12,000 square meters.Equipping the factory with heavy-duty machining equipment and CNC tools marked a significant step toward improving manufacturing quality.Diani emphasizes its strong reputation, manufacturing at its main factory and subsidiary facilities, and its focus on design and after-sales service as its key competitive advantages.