Ключевые слова: blue, bright, circular, concentrated, concentration, construction, craftsmanship, crouched, dark, engineering, equipment, fabrication, flame, focus, heat, helmet, illumination, industrial, industry, infrastructure, intense, job, kneeling, labor, light, maintenance, man, manual labor, metalwork, metalworking, orange, pipe, pipeline, protective, repair, safety, skill, skilled trade, sparks, steel, technology, tunnel, underground, welder, welding, work, worker,