... major type of hydrogen, propylene, ethylene compressorSuitable for Oxygen, Nitrogen, Hydrogen, Carbon Dioxide, Ammonia ... and pneumatic machinery. Widely used in mining, construction, machinery, chemical industry, metallurgy, transportation and ... 68/20structure typeZMDMcompressed mediumOxygenOxygenNitrogenNitrogencooling stylewater coolinglube style for cylinderoil freeoil freeoiloil freeNo. of row3424No ...