As an expert in air systems, Greentech has become one of most successful suppliers of  blower and vacuum pump in China with more than 20 years experience in R&D and marketing. We have an extensive team of engineers to provide technical back up to all clients as well as a large manufacturing base for blower and vacuum pump. Our products range from Roots Blowers (also call PD blower), Side Channel Blowers (also call ring blower or regenerative blower), Vacuum Pumps (liquid ring vacuum pump, also call water ring vacuum pump), Multistage Centrifugal Blowers, Single Stage High Speed Centrifugal Blowers, rotary valve, pneumatic conveying system, Centrifugal Fans, Industry Pumps, and Electric Products etc.