... :aluminum 2.DIA:1-50mm 3.finish:oxidation 4.tolerance:+-0.01 Equipmentplaner type milling machine ,cnc ... milling machine ,milling machine ,drilling machine ,tapping maching,chamfering machine and so on .(details show in below sheet)Material aluminum ... ) or samples. Processing MethodTurning, Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting, Welding, Threading, ...