Ключевые слова: 3d, architecture, armature, background, bar, building, concrete, construct, construction, element, engineering, factory, frame, framework, gray, group, illustration, industrial, industry, iron, manufacture, material, materials, mesh, metal, metallic, metallurgy, new, pattern, pipe, product, production, profile, rebar, reinforce, reinforced, reinforcement, reinforcing, rod, rolled, site, stack, stainless, steel, strength, strong, structure, texture, tube, white,