Ключевые слова: assembly, bar, bolts, build, building, clamp, clamped, clamps, close, connected, connector, construction, device, engineering, equipment, fasten, frame, framework, grey, grip, heavy, hold, industrial, industry, iron, job, joined, link, metal, pipe, poles, rods, safety, scaffold, scaffolder, scaffolding, screw, site, steel, strength, strong, tight, tightened, tool, up, work,