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This model fan features:

A type of wind turbine patent number: ZL200620098299. X

Second, the impeller the impeller adjusting device (patent no: ZL200620098302.8) to quickly adjust the impeller axial adjustment before and after.

Third, install the fan impeller inlet cone device (patent number: ZL200720085650.6) revolutionized the fan impeller without fumes, air inlet cone resistance and turbulence, reducing fan gas entry and bare back, ribbing, and screams from impeller plate friction noise.

Four, belt drive uses a toothed timing belt, effectively reducing the touch factor. Better improved fan performance parameters.

Five, install the air inlet protection grid, the fan on the way their work to avoid inhaling other foreign body

Six, install inlet regulating valve, convenient regulation of air pressure, air volume.

Seven, install air outlet hood, preventing foreign material into the other during transport.

Eight, matching belt safety cover installed. Accessories and manuals, certificates of boxing. Transport more convenient.