... and lower die, 4.Torsion bar, 5. Hydraulic system6. Back gauge, 7. Upright, 8. Electrical cabinet, 9.Beam, ... Design & Inspection standardJB/T2257.1<< Press Brake, Technique>>GB/T1349 <<Press Brake, Accuracy>>JB/T54363 <<Press Brake, Grade>>7. Character--Steel ... easy to be recognized and convenience to operateMotorized back gauge, LED display, back gauge with manual adjustment, vertical adjustment by ...