Inquiry (采购产品): Need to Purchase I need three to five gravity lourvers for an air ventalation system. They need to allow 7700 CFM air intake each. I will need a flange for mounting purposes and would like a wire mesh over the opening to prevent birds from entering. Please quote price and delivery. **** Hidden Message ***** Ernest Lackner 44281 Company: Alfe Heat Treating E-mail: elackner@al-fe.com **** Hidden Message ***** elackner@al-fe.com
