Ключевые слова: acetylene, blue, bright, burner, collar, construction, cut, dangerous, engineering, equipment, expertise, factory, fire, flame, foundry, gas, glasses, glow, hazardous, hot, industrial, industry, iron, job, liquid, machine, machinist, man, manufacturing, metal, metallurgy, metalwork, molten, occupation, oxygen, pipe, production, profession, propane, red, repair, rust, spark, steel, tools, torch, weld, welder, welding, work,