Aluminum speaker shell FOB $3-4/KG 1.material:6063 T5,6061 T6 ... etc. 3.We can do as your request Aluminum speaker shell : Product NamePower Coated Aluminum Loudspeaker ShellMaterial6060/6061/6063/6082/6005 ... Wooden Transfer, brush, sand blasting, polishing, bright dip. EtcDimensionarious shapes, parameters and colors availableAdvantageOne-stop Service: Mould, Extrusion, Surface treatment, Fabrication ...