... Design,Quick Sample 4) OEM OK Brushed Aluminum Cover for Car Power Amplifier Specification:Material: Alluminum Alloy: 1x,2x, 3x ... forming, HydroformingApplication: Aluminum Panel/ Plate/ Covers used for all kinds of Car or Home Power Amplifier/Audio Player/ Disc Player ... design and development, we can provide customer a "one-stop service" from melting, extruding, surface treatment, welding and ...