... fans 1.High efficiency,Easy to operate,Low noise, 2.Used in furnance ,boiler,and forced ventilation ... fan.impeller:blade. brick kiln dedicated fanWe export to Korea,Tailand , Vietnam ,Indonesia ,Malaysia ,Pakistan ... , should check it, and repair it.In addition to every time after repairing should be oil change ... pipeline should not be add in the casing, according to the drawings corrective air inlet ...