Ключевые слова: arc, business, construction, craftsman, design, engineering, equipment, fabricate, factory, fire, flash, gas, gloves, hand, helmet, industrial, industry, iron, job, labor, laborer, light, machine, man, manufacture, manufacturing, mask, metal, office, production, protection, repair, safety, skill, skilled, smoke, spark, steel, structure, technical, technology, tool, weld, welded, welder, welding, work, worker, workplace, workshop,