... 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 ... Processing MethodTurning, Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting, Welding, Threading, Grinding, Milling, Machining, Drilling, Assembly, etc Production ...