... *90mm(can chose) 3:Marking Depth:0.1-1.0mm Pneumatic Marking Machine for Metal Parts are details as follow:Brief ... Machine, The machine is in succession of constant Hengwei intelligent pneumatic mark machine, on the basis of original merit in the ... to learn and easy to operate4, use of imported industrial components, such as power supply, drives, stepper motors, etc.5, using ...