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WF67K Electro-hydraulic Energy saving CNC press brake machine with One-way Servo pump steel plate brake press1. The electro-hydraulic servo system adopts on-demand oil supply mode to reduce overflow and save energy by more than 30%. 2. Heat balance temperature is low, fuel tank capacity is reduced,service life of hydraulic system and components is prolonged. 3. Long interval of oil change,reduce energy waste and reduce user cost. 4. When bending the workp1