Ключевые слова: alloyed, black, block, blue, carbon, casting, character, charge, closeup, construction, design, edge, equipment, facility, forging, frame, gray, grinded, grinding, hardware, industry, inscription, iron, letter, macro, manufacturing, marking, metal, metallic, nobody, painted, part, pipe, pipeline, polished, safety, shiny, silver, solid, stainless, steel, surface, technician, tool, tube, valve, work,