... 19mm,22mm,25mm,28mm,32mmSurface treatment: spray-painting, electroplatingAluminum pipe, aluminum round pipe, industrial aluminum tube1) Material: Aluminum alloy2 ... ) Diameter: 19mm,22mm,25mm,28mm,32mm3) Surface treatment: Spray-painting, ... ,0.8mm,0.9mm,1.0mm,1.5mm5) Color: Spray-painting: white, silver, grey, pink, blue, green, ...