Factory steel frame workshop under construction isolated on white background.

background, solid, design, shapes, beautiful, business, metal, outdoor, abstract, plant, light, steel, pattern, connection, industrial, technology, frame, framework, modern, architecture, building, city, construction, exterior, industry, structure, urban, window, roof, clear, support, strength, material, manufacturing, beam, engineering, site, infrastructure, workshop, factory, process, columns, girder, steelwork, truss, spacious, upright, unfinished, structural, crosspiece,