Grade:Aluminum Temper:T3-T8 Application:Heat Sink Shape:rectangle Alloy Or Not:Is Alloy Product Name:heat sink case Surface treatment:Color Anodized Usage:industrial,mini PC,embedded PC TDP:20W -100W Crafts:Extrusion technology Color:Silver,anodize,Black,blue Certification:ISO9001 Size:224.5*180*56mm,can customized. OEM Service:yes factory:10 years factory