FA series is a single-phase capacitor-start motor axial-flow type exhaust fan. FTA is a three-phase asynchronous motor axial-flow exhaust fan.
FA系列为单相电容运转电机轴流式排气风扇，FTA为三相异步电机轴流式排气电扇。
FA series is a single-phase capacitor-start motor axial-flow type exhaust fan. FTA is a three-phase asynchronous motor axial-flow exhaust fan.
FA系列为单相电容运转电机轴流式排气风扇，FTA为三相异步电机轴流式排气电扇。
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