Shandong Yukos Petroleum Equipment Co., Ltd. provides our company with maintenance, repair and inspection services for 105MPa and 140MPa products (high pressure movable elbows, plug valves, safety valves, single flow valves, check valves, etc.). Feedback from the hydraulic fracturing acidification team about the company's professional repair products, excellent performance, stable and reliable repair quality; The repair shop of this company has a specialization and professional layout, conveyor repair operations; Main integration of process planning, strict control and verification of processes before and after without leaks; Excellent professional tools, devices, flaw detection equipment, inspection -testing equipment and experimental equipment in the process of repair and disassembly, testing and experimentation; The maintenance personnel have been professionally trained in product maintenance and are professionally qualified in maintenance operation.