1.High efficiency,low noise,easy operation 2.Adjustable blades 3.T/T payment 4.CE certification 5.Competitive price circulation centrifugal fan impeller Details of the product1. 304 steel,carbon steel and alloy.2.Process:investment casting&machining3.Customized service avaliableWe provide all kinds of customized pimp parts castings through sand casting and investment casting. our range of ...