A single close-up architectural concrete panel, filling the entire frame, precise thin seams visible only along the very
A single close-up architectural concrete panel, filling the entire frame, precise thin seams visible only along the very: free seamless stone PBR material with albedo, normal, roughness, AO, and metalness maps. CC0 licensed.

Crafted from the prompt: "A single close-up architectural concrete panel, filling the entire frame, precise thin seams visible only along the very outer edges, four circular tie rod holes strictly located inside each of the four corners, natural gray concrete texture, matte rough finish, realistic light scratches, fine dust, scuffs, clean industrial cement color, seamless 4k PBR texture"
PBR maps included: albedo, normal, roughness, height, ambient occlusion, metalness. Resolution 1K. License CC0 (public domain).