Ключевые слова: arc, assembly, build, busy, connect, construction, danger, duty, engineer, engineering, entrepreneur, equipment, factory, fire, fix, flash, heavy, horizontal, indoors, industrial, industry, job, join, labor, laborer, light, man, manual, manufacture, manufacturing, mask, metal, metal worker, occupation, production, protection, repair, safety, skill, skilled, smoke, spark, steel, structure, technical, welder, welding, work, workplace,