Ключевые слова: arc, builder, building, business, connect, construction, cutting, electrode, engineering, equipment, fabricate, fabrication, factory, fire, flame, flash, gas, head, heat, heavy, helmet, industrial, industry, iron, job, light, machine, machinery, machining, making, manufacture, manufacturing, mask, mechanical, metal, metalwork, metalworking, occupation, plant, process, processing, production, repair, safety, skilled, smoke, soldering, spark, steel, technology, tool, torch, welder, welding, welding torch, work, worker, workshop,