Ключевые слова: arc, builder, building, connect, construction, craftsman, electrode, engineering, equipment, fabricate, fabrication, factory, fire, flame, flash, gas, heat, helmet, industrial, industry, iron, job, join, labor, light, making, man, manual, manufacture, manufacturing, mask, metal, metalwork, occupation, production, protection, repair, safety, skilled, smoke, soldering, spark, steel, tool, torch, welder, welding, work, worker, workshop,