thickness:0.24-3.0mm Tolerance: a) Outer diameter: +/-0.15mm b) Thickness: +/-10% ... ,28x28,30x30,36x36,38x38,40x40,48x48,50x50,60x60,70x70,80x80 3) Rectangular pipes - Outside dimensions(mm) : 20x10,23x11,24x12,25x13,28x13 ... ,50x15,50x25,60x15,60x30,73x43,75x45,95x454) Wall thickness: 0.24- 3.0mm5) Length: 6m (or according to customers' requests)6) Polishing ...