Good shear Cean qualitative due to hydraulic oil through the pump, the valve orifice and crevice Inner high and low pressure electric pump to withstand severe high and low pressure electric pump shear, causing some oil macromolecular polymers such as thickening molecular agents break into small molecules, Liaoning high and low pressure electric pump, the viscosity decreases when the viscosity is reduced to a certain extent, the oil can not be used, so requires a good shear resistance. Refer to the electric pump electric pump instructions. 4, the weight center of gravity to choose moderate, reasonable choice of electric hydraulic jack focal point, to pad the bottom level of Jilin high and low pressure electric pump, taking into account the hard and soft ground conditions, whether the timber liner tough, place is stable, so as not to load subsidence or tilt. High and low pressure electric pump single circuit, Texas aerospace hydraulic, high and low pressure electric pump provided by the Dezhou City aerospace hydraulic machinery plant. Dezhou City aerospace hydraulic machinery plant (www.sdhtyeya.com) is a leader in Dezhou, hydraulic equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Texas aerospace hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the Texas aerospace hydraulic better future.