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In order to meet the needs of deep wells in deep water and land, especially in desert areas, deep wells (including ultra-deep wells over 7,000 meters) and horizontal wells, after nearly three years of unremitting efforts, Baoji Petroleum Machinery Co., Ltd. successfully developed the first independent knowledge in China. The high-power, high-pressure F-2200HL three-cylinder drilling mud pump with property rights not only fills the gap in this field in China, but also further enhances the design, R&D and manufacturing strength of the enterprise.