Ключевые слова: arc, assembly, build, close, concept, construction, craftsman, dark, effect, engineering, equipment, fabrication, factory, fire, gas, gloves, horizontal, hot, industrial, industry, iron, job, man, mask, metal, person, production, protection, repair, safety, shipyard, shop, smoke, spark, steel, structure, technical, technology, tool, torch, weld, welder, welding, work, worker,