Aluminum flanges, with their advantages such as being lightweight (reducing vehicle weight and enhancing fuel efficiency and performance), offering excellent corrosion resistance (ensuring durability in harsh environments and minimizing maintenance and replacement needs), having a high strength - to - weight ratio (withstanding high pressures and stresses for vehicle reliability and safety), and providing excellent thermal conductivity (enabling efficient heat dissipation), are widely used in the automotive industry, including in engine components like cylinder heads and oil pans, exhaust system pipe connections, transmission system case parts, and suspension systems, thus significantly contributing to improving vehicle performance, fuel economy, and durability.