Ключевые слова: assembling, beam, bolt, build, closeup, columns, connect, connecting, connection, construct, construction, construction of the plant, construction site, engineering, equipment, fastener, frame, grader, hardware, heavy, industrial, industry, infrastructure, installation, joint, machine, machinery, maintenance, manual, many, mechanic, mechanical, metal, metal texture, nobody, nut, repair, screw, site, steel, strength, strong, structure, support, the connection of bolts, tool, weld bolts, welded beams, welded fittings, work,