... used for every kind of shearing, blanking.high rigidity, precis Inclinable power punching forming press machine BB J21-80 Main ... secondary drive,which is characterized by stable performance and lower noise.The internally inserted double roating key ... .It is widely used for punching, blanking, cutting, bending, forming, light stretching and so on.SpecificationsUnitJ21-80Nominal CapacityKN800Slide ...