Positive displacement blower, Cement Industry, Mining industry L Roots type blowers/vacuum pump is designed by National Union Associated Design Team with more than 20 years’ history since 1987.During these years, we updated L product for several times as per the requirement...

Low pressure, medium pressure, and high pressure. Besides of centrifugal fans with low pressure, medium pressure, and high pressure, we also produce customs-made products to get the beat match between economy and performance.Featuresl  Applying optimizing design method,...