... series 3,Finish: Anodize... 4,anodized aluminum tube with round, square,oval, etc Oval aluminum tube1,Anodized Aluminum tube2,Alloy: 1000 ... and 6000 series on the oval aluminum tube.3,Finish: Customized, such as anodize, mill, powder ... ...on the oval aluminum tube.4,Anodized aluminum tube with round, square,oval, etc. Our company is specialized in oval aluminum tube since we ...