Ключевые слова:
Compressed gases|Oxygen|Methane|Carbon monoxide|Gas cylinders|Hydrogen cyanide|Ethylene|Sulfur dioxide|Hydrogen|Nitrogen|Coal gas|Chlorine|Ammonia|Acetylene|Methyl chloride|Helium|Colour codes|Ethyl chloride|Propane|Methyl bromide|Pressure vessels|Marking|Carbon dioxide|Industrial|Air|Ethylene oxide|Carbonyl chloride|Gases|Neon|Argon|Symbols