Ключевые слова: argon, background, barrel, blue, butane, cartoon, chemical, collection, color, colored, colorful, compressed, container, cylinder, danger, dangerous, design, element, energy, equipment, explosive, flammable, fuel, gas, graphic, group, illustration, industrial, industry, lpg, manometer, metal, nitrogen, object, power, pressure, propane, red, safety, set, steel, storage, style, supply, tank, tool, valve, various, white,