Ключевые слова: abstract, backdrop, background, building, close, closeup, company, concept, concrete, construction, design, equipment, fence, foundation, frame, grate, grid, grille, industrial, industry, iron, link, material, mesh, metal, net, pattern, pour, protection, rebar, reinforced, reinforcement, reinforcing, shape, site, slab, steel, strength, strong, structure, texture, up, welded, wire,