... feeding conveyor unit,marking unit,two punching units,shearing unit,outfeed conveyor unit,hydraulic system and electric ... can be adjusted manually.Shearing unitDouble blades or single blade sheariing, smooth incision, shearing clearance can be adjusted ... system,having faster response and higherefficiency.Punching,marking,shearing,Workpieceholding-down and marking groupstransposition are all driven ...