This study aims to identify the key production bottlenecks in manufacturing a high-quality tundish nozzle comparable to an imported foreign part. By overcoming these bottlenecks, we strive to develop the technical expertise necessary to produce these nozzles domestically, eliminating the need for imports in the Iranian casting industry. The tundish nozzle was examined in three parts: the metal holder, the refractory nozzle seat, and the nozzle insert. The metal holder is formed from a simple, precisely shaped low-carbon steel sheet. Analysis using ICP, SEM-EDS, and XRD revealed that this holder is composed of over 99.5% iron, with a carbon content of 0.055% and no significant alloying elements. The primary phase is alpha iron (ferrite), with a small amount (less than 1%) of iron carbide (cementite). Analysis of the refractory material and nozzle insert using XRD, XRF, and SEM-EDS indicated that these components contain alumina, mullite, silica, and spinel phases (in the refractory) and partially stabilized zirconia using 2-3% calcium oxide and magnesium oxide (in the insert). It is believed that the refractory material consists of alumina, clay compounds (including kaolin and ball clay), zircon (zirconium silicate), and carbon, while the insert utilizes partially stabilized zirconia. The research indicates that the key bottleneck in producing the metal holder is the shaping process, which uses a dedicated mold. Manufacturing the mold becomes cost-effective when making large quantities. For the refractory material, the bottleneck lies in achieving a suitable formulation of raw materials to obtain the desired phase composition for optimal performance .