With the extension of service period of Shanshan-Lanzhou Oil Pipeline. Ruhrp pumps needed overhauling. for which the guidance of specific technical requirements would be required. According to the structural characteristics of Ruhr pumps. https://www.roneverhart.com/HP-Notebook-15-da0008ca-HD-LED-15-6-Touchscreen-Intel-Core-i5-8250U-1-6-GHz-8-GB-RAM-1-TB-SSD-HDMI-USB-Multi-format-S/