工业换气扇型号可选任何壁挂或底座安装模式，24英寸或30英寸直径的叶片。
Industrial Ventilation Fan models are available in either wall mount or pedestal mount models and feature blade diameters of 24 "or 30".
工业换气扇型号可选任何壁挂或底座安装模式，24英寸或30英寸直径的叶片。
Industrial Ventilation Fan models are available in either wall mount or pedestal mount models and feature blade diameters of 24 "or 30".
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