... ,Quick Sample 4) OEM OK Anodized Aluminum Car Amplifier Cover/ Front Plate/ CasingSpecification:Material: Alluminum Alloy: 1x,2x, 3x, 4x, 5x, ... Drilling, Turning, Tapping, Shearing, Insulation, Platic forming, HydroformingApplication: Aluminum Panel/ Plate/ Covers used for all kinds of Car or Home Power ... with a thorough understanding of customer requirement./ Anodized Aluminum Amplifier Front Plate