... no broken, attractive and durable. ( adopting aluminum fan blade in the past, which had some problems caused ... imported axletree(bearings), high intensity, low noise, long service life. 4. Variety sizes of shape and install conveniently ... operating, reduce noise, enhance stability, extend service life.36’’Fan Air capacity20800m3/HrSize1000×1000×450mmNoise<64DBPower0.4KWVoltage380VElectric Current1 ...