... 3:life:10k hours,less maintenance Pneumatic Marking Machine for Frame Chassic Number are detailed as follow: Introduce:Jinan Hengwei ... easy to carry, applicable to go out and field operations, frame number, plates, large-sized workpiece mark and different modification work ... supply, drives, stepper motors, etc.5, using quality control cable, and cable, anti-fold protection.6, the model can be flexibly ...