An aluminum extruded roof longitudinal beam is a critical structural component widely used in high-speed trains and lightweight transportation vehicles. Manufactured through the extrusion process, this beam is formed by pushing heated aluminum extrusion material through a die to achieve its specific cross-sectional profile. The process not only optimizes material strength but also enhances design flexibility, making it ideal for streamlined, high-strength applications. After extrusion, the beam often undergoes heat treatment to further improve its mechanical properties, such as tensile strength and corrosion resistance. The resulting extruded aluminum structure ensures lightweight durability and exceptional stability, contributing to the overall safety and efficiency of modern rail transport.