... Main frame instructionFront support, 2.Foot pedal, 3.Punching tool and lower die, 4.Torsion bar, 5. Hydraulic system6 ... Design & Inspection standardJB/T2257.1<< Press Brake, Technique>>GB/T1349 <<Press Brake, Accuracy>>JB/T54363 <<Press Brake, Grade>>7. Character--Steel welded structure, ... moved transverse manual.heat-treated punching tool Different types of punching tool and lower die can be supplied ...