Material:aluminiumalloy&galvanizedsheet,orascustomer'srequest; Size:wheeldiameter35-65mm,orascustomer'srequest; Motor:Theperformancecanbeadjustedascustomer'srequest. ThemotorisUl&cUL&CE&VDEcertified; Description:Bigairflowandnicedesign; 220V/110Vcanbechoseninallapplications; Theblowers,creatinghighairvolumewithlowvibration,arecommonlyusedinHVAC systems,machineryforheating,ventilating,airconditioning,drying,dehumidifying, etc.FanscanbeservedininsulationclassE,B,H.Pleasecontactusformoredetails.