Ключевые слова: abstract, backgrounds, beam, brown, build, builder, building, cement, composition, concrete, construct, construction, corrosion, court, cover, creativity, curves, development, engineering, equipment, floor, foundation, frame, grade, grid, hard, heavy, horizontal, indoors, industrial, industry, iron, material, mesh, metal, net, pattern, pile, rebar, reinforce, reinforcement, rod, rust, rusty, site, steel, strength, strong, structure, texture,