aluminum alloy oval tube An anodized coating on extremely smooth inner and outer surfaces. Temper:O Thickness:customized Specifications1.aluminum oval tube2.1000, 3000 ... .Finish: Customized, such as anodize, mill, powder coating...on the oval aluminum tube. Details:Diameter: outer:6- 500 mmThickghass: 0.4 -50 ... , bus, train, etcDecoration lighting: led light, street light, etc. aluminum oval tube