Marlin company in 2017 September when the quality of the Jiangsu to a military enterprise delivered two sets of high pressure steam system, this system is a system of independent research and development of Manli. The system uses DYNEX high pressure pump valve, the pressure is up to 70 MPa, and the hydraulic parts such as motor, sensor and so on are assembled. The Manli for hydraulic test bench developed specialized PLC software, has the characteristics of simple and easy operation etc.. The two systems have been successfully used on the spot.