... ,22mm,25mm,28mm,32mmSurface treatment: spray-painting, electroplatingAluminum tube, aluminum round tube, industrial aluminum tube1) Material: Aluminum alloy2) Diameter: 19mm,22mm ... .9mm,1.0mm,1.5mm5) Color: Spray-painting: white, silver, grey, pink, blue, green, etc. Electroplating: Brass, chrome, silver, gold, etc ... by customers reuqest. OEM orders are welcome. commodity aluminum alloy round tube