... 4) ISO9001-2008 standard WE67Y-160/4000 hydrualic press brake, bending machine, press machine1.Model: WE67Y-160T/40002.Brand:3. ... .Foot pedal, 3.Punching tool and lower die, 4.Torsion bar, 5. Hydraulic system6. Back gauge, 7. Upright, 8. Electrical ... synchronization system--Mechanical-hydraulic synchronization system, which use a torsion bar to ensure the parallelism between beams, it’s a ...