The role of railway fence: Safety protection on the railway is a very important link. The installation of railway fence is to ensure the safety of the railway surroundings, to prevent animals from entering the railway tracks and rocks from falling, which may cause safety hazards in railway transportation. Therefore, the requirements for railway protection nets are relatively high. Each welding point or weaving point must have good connectivity. The high requirements for materials and craftsmanship play a vital role in both the normal operation of the railway and the environment around the railway.