1.Material:aluminum 2.DIA:1-50mm 3.finish:oxidation 4.tolerance:+-0 ... machine and so on .(details show in below sheet)Material aluminum, mild steel, stainless steel, chrome steel, cold rolled sheet, ... samples. Processing MethodTurning, Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting, Welding, Threading, Grinding, Milling, Machining, Drilling, Assembly, etc ...