Retaining wall guards are mainly divided into two types: one is made by welding mesh to the frame, and the other is made by welding vertical pipes to the frame. For excavation pits deeper than 2 meters, dense mesh should be used for enclosed protection. The guard bodies are painted with prominent warning colors using red and white or black yellow oil paint, and warning signs are hung. Additionally, the phrase "Protective Equipment, No Removal" is marked in the middle of the guard.Excavation barrier, also known as construction site fence or excavation edge protection mesh. Excavation barriers are categorized into standard and non-standard grades, with differences lying in the material thickness and service life. As they continuously evolve, the products become more modern in design, with enhanced safety and flexibility. They also serve the purpose of traffic and pedestrian segregation, as well as warning. Suitable for safety protection at construction elevator shafts, goods elevator shafts, and other temporary safety barriers on construction sites.