... vibration, good balance effect, the pressure coefficient is high, good material, durability and other characteristics, it ... parts sheet below: No.DescriptionSizeDiameterHeightRotationShaft Diameter1 blower wheelØ380x180380mm180mmCCW12mm2Ø325x155325mm155mmCCW12mm3Ø325x140325mm140mmCCW12mm4Ø317x135317mm135mmCCW12mm5Ø300x130300mm130mmCCW12mm6Ø265x70265mm70mmCW8mm7Ø210x75210mm75mmCW8mm.................. ...