... .Anodized,powder coating 4,OEM welcomed aluminum extruded profile for speaker shell ContentsSpecificationsThickness0.8-4.0mm or as client's demandsMaterialsAlloy ... coating, PVDF coating, Wooden coating, etc.Series40 Series, 50 Series, 55 Series, 60 Series, 70 Series, 80 Series, 90 Series, 100 ... -0.172≤0.1≤0.1 aluminum extruded profile for speaker shell