... major type of hydrogen, propylene, ethylene compressorSuitable for Oxygen, Nitrogen, Hydrogen, Carbon Dioxide, ... Widely used in mining, construction, machinery, chemical industry, metallurgy, transportation and air separation, instrument ... 20structure typeZMDMcompressed mediumOxygenOxygenNitrogenNitrogencooling stylewater coolinglube style for cylinderoil freeoil freeoiloil freeNo. of row3424No ...