Aluminum alloy fan blade of cooling tower Material:aluminum alloy Usage:cooling tower spare parts Feature:low noise Aluminum alloy fan blade of cooling tower with low noise material:aluminum alloyusage:cooling tower spare partsDiameter:meet your demandBore diameter:20 to 40 Other Aluminum alloy fan OUR FACTORYEstablished:2009Employees: 11 - 50 PeopleNo. of R&D Staff : 11 - 20 PeopleNo. of QC ...