1,Japan hydraulic system, 2,PLC control with touch screen, 3,pre-bending of high precision,rich bending shapes such as O,U 1,Japan ... , 2,PLC control with touch screen, 3,pre-bending of high precision,rich bending shapes such as O,U 3 roller rolling machine Which is ... Composed of Y series motor, gear pump , valves , oil tank, pipe and so on.Max pressure is 20 Mpa , testing pressure ...