Durability is assessed through Salt Spray Testing (ASTM B117) reports, which indicate how long the fence will resist rust. For the Y posts, check the weight per meter (e.g., 1.58kg/m, 1.86kg/m, or 2.04kg/m); heavier posts offer better stability in hard soil. For the mesh, evaluate the tensile strength (measured in MPa) to ensure it can withstand impact from livestock or intruders without permanent deformation. Ensure the pre-drilled holes on the Y posts are clean and consistent for easy wire threading.