... without resistance, accurate and effective unloading of the pressure of the system, to achieve operation without ... nozzle (gem) (mm) 0.20~0.33Maximum pressure (MPA) 420Model TJY420Way of Direction-changing Electronic Direction ... Pump and Oil Pump, one for eachOne High-pressure Water Switch One Fuel TankHydraulic Pressure Meter, Fuel Pressure Meter, High-pressure Water Control Button, and High-pressure ...