Ключевые слова: arc, construction, craftsman, equipment, fabricate, factory, fire, flash, gas, gloves, helmet, hot, industry, job, join, labor, laborer, light, making, man, manufacture, manufacturing, metal, prefabricate, production, protection, safety, skill, skilled, smoke, spark, sparks, steel, technical, technology, trained, welded, welder, welding, work, worker, workplace,