Ключевые слова: background, bar, black, block, bolts, building, clamp, connect, construction, coupler, design, development, dirty, engineering, erection, grunge, industrial, industry, iron, line, metal, old, piece, pillar, pipe, place, pole, post, project, rust, safe, scaffold, scaffolding, screw, shadow, shape, silhouette, site, steel, support, temporary, tighten, tower, tube, white, work,