System of engine of pneumatics of brief and comprehensive understanding QiAir Compressor 6 months ago Air has condensability, classics air compressor does mechanical result to make itself bulk contractible, the air after pressure increases makes compress air. Compressing air is a kind of main power source, compare with other the sources of energy, it is had carry easily, use convenient, and compress air to basically come from ground air, those who take is easy, those who use is endless. Pressure