... efficiency, so it is energy-saving. The blower rotor adopted the advanced Composite curve, the meshing is ... increases the volume efficiency.3. Stable performance. The blower rotor, casing, wall panels, shaft and other key components ... and components increased.4. Low vibration. Although the rotor has been processed precisely, and are all in ... PulleyV-belt CoverV-beltLubricating oil Vacuum casting