Ключевые слова: acetylene, air, argon, bottle, carbon, co2, compressed, contain, cubic, cylinder, danger, dioxide, energy, equipment, explode, fuel, gas, group, hazard, helium, industrial, industry, instrument, keep, knob, liquid, lpg, maintain, manifold, manufacture, metal, mixes, nitrogen, oxygen, pipe, prepare, pressure, risk, safety, seamless, shield, standard, steel, storage, store, supply, tank, valve, welding, workshop,