Axial cylindrical industrial ventilating fan 14"/16"/18"/20" 1.Motor 100%pure copper 140*40mm 2.Body full metal 3.Axial fan 4.propeller Product Spec:14"/16"/18"/20" cylindrical industrial ventilating fan industrial ventilating fan industrial exhaust fan ventilating fan Description: The fan blade of SF series duct axial fan adopts special twisting radian measure design, the housing of fan adopts flanging workmanship, that makes thefannoise lower and air flow larger. Excellent performance and easy to maintain. Features: Strong wind flow and low noise, excellent performance and easy to maintain,. Product Model:KHG3-35KHG3-40KHG3-45KHG3-50Product Spec14"16"18"20"Power(W):100150250500Speed(r/min)1400140014001400Air Volume(m3/h)2900450050005800Packing Size(CM):43*43*2949*49*2954*54*29.559*59*29.5Packing Quantity(PCS):1111Loading QTY(pcs)520/1080/1215384/768/864280/616/792210/420/540