1) long life quality 2)ISO9001 certificate 3) steady quality T30(C) type axial flow fanT30 type axial flow fan is improved based on 30K4-II, It has advantage of reasonable structure, high strength for leaf, low noise, high efficiency. This type blower has regular and open models. It used for conveying high temperature gas or other gas with oil,water,and dust. The gas should not be inflammable, ...