Roots Blower Factory Video to show How positive displacement blower Roots Blower processing

It's a video to show how we make positive displacement blower (roots blower). It's a very short beginning show some photos of Huadong blower factory and CNC machines and finished roots blowers, then the main parts processing videos come, includes, rotary rotors / impellers processing, casing / chamber processing, shaft processing, side plate processing, and followed are some photo and contacts.