Air Curtain Impeller 1.Raw Material: Aluminum Alloy 2. Wheel Diameter: 81mm 3.Run-out: within 0.8mm 4.RoHS certificate Air curtain cross flow impeller/Aluminium Impeller Aluminium Impeller Mission: Zhejiang Langdi Group always abides by the business strategy of" Do business honestly,Manage enterprise morally“, the enterprise spirit of"Work sincerely,Innovative,keep developing", and working style ...