Ключевые слова: arc, builder, construction, craftsman, electrode, engineer, engineering, equipment, factory, flame, flash, gas, heat, helmet, indoors, industrial, iron, job, join, labor, light, man, manufacture, manufacturing, mask, metal, metalwork, occupation, protection, protective, safety, semiautomatic, skilled, smoke, solder, spark, steel, structure, tool, torch, weld, welder, welding, work, worker, working, workshop,