which provides energy on the punching, folding and shearing parts of the device. It is made up of oil tank, oil pump, hydraulic solenoid valve, hydraulic pipeline, etcetera. The hydraulic station is equipped with an impartial hydraulic oil air cooling system Punch on flat sheet. PLC Regulate punch amount https://china-duplex-roll-forming27913.diowebhost.com/83762724/the-basic-principles-of-double-layer-roll-former-suppliers