Ключевые слова: arc, buffer, building, business, connect, construction, electrode, engineering, fabricate, fabrication, factory, fire, flame, flash, flux, gas, hard surfacing, heat, heavy, industrial, industry, iron, job, join, layer, light, machine, machinery, manufacture, manufacturing, metal, metalwork, metalworking, plant, process, processing, production, repair, safety, skilled, smoke, soldering, spark, steel, technology, torch, welder, welding, welding torch, work, worker, workshop,