Inquiry (采购产品): blade type fan we are a small manufacturing company this is in need of a fan that is air driven that will create a vibration. our size requirements are 3.5 inches in diameter, with up to 2 inches thick, with 4 blades. preferably metal construction. Will mount in a air tube preferably with bearings and a shaft. power will be by a Echo gas powered leaf blower that supplies air via a 3 inch blower tube **** Hidden Message ***** Philip Murphy 93554 Company: Mountain Man Mining E-mail: wfourm@gmail.com **** Hidden Message ***** wfourm@gmail.com