... FRP anticentripetal ventilator.Chassis, impeller and enter wind device produce with glass, suitable for petroleum, chemical industry, smelting, electroplating, ... 12C, 6D-12D air blower adopt the transmission group with 4-72 air blowers of metal of the number of the ... foundation that the ventilator is installed had better be corrected with the level, make the framework and foundation identical naturally ...