Ключевые слова: bright, burning, construction, craftsman, dark, employee, engineering, equipment, factory, fire, flame, gas, hardhat, horizontal, industrial, industry, iron, job, labor, light, making, manual, manufacturing, mechanic, mechanical, metal, metalwork, metalworking, occupation, one, oxyacetylene, people, person, protection, repairing, safety, skilled, skills, sparks, steel, technical, tool, tools, wear, welder, welders, welding, work, worker, workers,