Ключевые слова: background, blackandwhite, bolt, closeup, cogs, construction, design, engineering, engrenagens, equipment, gear, gears, hardware, industrial, industry, iron, item, machinery, macro, mecanic, mechanic, mechanical, mechanism, metal, metallic, nut, old, part, parts, pattern, pile, pulley, repair, retro, screw, set, shiney, silver, steel, technical, technik, technology, teeth, template, texture, tool, wheels, work, working, workshop,