Ключевые слова: background, black, carving, cast, chrome, connection, contrast, cylinder, equipment, facet, glare, hexagon, horns, image, industry, key, light, machined, metal, metallic, metallurgy, mirror, nut, plane, reflection, responsibility, ring, rotation, screw, sharpen, shine, shiny, size, steel, technology, tool, twist, unscrewing, vanadium, washer, work,