... PRESS BRAKE, CNC CONTROL,500 TONS BENDING FORCE, 6 METERS LONG, CE,ISO-9001 CERTIFICATE WE67K-500/6000 CNC HYDRUALIC PRESS ... BRAKE, CNC CONTROL,500 TONS BENDING FORCE, 6 METERS LONG ... standardJB/T2257.1-1992<< Press Brake, Technique>>JB/T2257.2-1999<< Press Brake, Model & Parameter>>7. CharacterKnock down structure, convenience ...