... ,Quick Sample 4) OEM OK Aluminum Sound Receiver Panel /Housing/ Shell/ CasingSpecification:Material: Alluminum Alloy: ... T1, T4, T5, T6, H12Shape: Panel/ ShellSize: Flexible SizeSurface Treatment: Anodized, Power Coating, Sandblasting, Polishing, Grinding, Painting, Screen ... Tapping, Shearing, Insulation, Platic forming, HydroformingApplication: Aluminum Panel/ Plate/ Covers used for all kinds of Car or ...