Aluminium square tube profile Aluminium square tube tube or pipe profile square tube Material:Aluminum 6063 / 6061 Aluminium square tube profileAluminium square tubetube or pipe profilesquare ... alloy: 6061 /6063 T3-T8 Shapeaccording to drawing and sample (square, angle, flat, T-profile, rotundity, oval,slot)Deep machiningprecise cutting ...