... hydrogen, propylene, ethylene compressorSuitable for Oxygen, Nitrogen, Hydrogen, Carbon Dioxide, Ammonia, Synthetic Gas, Rich Gas, Hydrocarbons, Mixed Gases, ... . Widely used in mining, construction, machinery, chemical industry, metallurgy, transportation and air separation, instrument control, ... speed (r/min)990428990428Remarks natural gas, oil field gas compressor for chemical industry D-TYPE