Ключевые слова: arc, assembly, blue, build, connect, construction, craftsman, electrodes, engineering, equipment, fabricate, factory, fire, flame, flash, gas, hot, industry, iron, job, join, labor, laborer, light, making, manufacture, manufacturing, metal, power, protection, repair, safety, skill, skilled, smoke, spark, steel, structure, technical, technology, tool, weld, welder, welding, welding machine, welding work, work, worker, workshop,