Ключевые слова: abstract, background, bolt, closeup, collection, construction, copper, design, detail, dirty, dust, element, engineering, equipment, find, grunge, hardware, head, hold, industrial, industry, iron, macro, maintainence, mechanic, metal, metallic, nature, nut, object, old, part, pattern, people, repair, rust, rusted, rusty, screw, selected, spring, steel, texture, tools, used, useful, vintage, work, worker,