... unit,feeding conveyor unit,marking unit,two punching units,shearing unit,outfeed conveyor unit,hydraulic ... punching unit.It’s convenient to change punches and dies.Automatic tool assignment,pincher clamping or lifting,feeding buffer,finished products ... powered hydraulic system,having faster response and higherefficiency.Punching,marking,shearing,Workpieceholding-down and marking groupstransposition ...