Roller Tube 1.Materical: Aluminum Alloy 2.Diameter : 28mm, 38mm, 50mm, 70mm 3.Thickness: 0.3,0.6, 1.2 and 1.5mm Specification NameRoller TubeLength6.3metersMaterialAluminum AlloyDiameter28, 38, 50,70mmThickness0.3, 0.6,1.2,1.5mmColorAluminumPackage 6 .3m/PC, 10~20PCS/bundle