1>motor shaft,metal shafts 2>Size:L 0.5~700mm O. ... follow the working plan work on each procedure. Use Digital control lathes,polishing machines, milling machines, stamping machines,high-frequency induction ... ± 0.01mm Ra : 0.8mm I.D. 0.25mm Shaft---motor shaft,steel shaft,metal shaft Basic process:1.the shafts ... , accordding to drawing.2.sample make and check3.massive production motor shaft