Plunger pump base and plunger pump device

Assignee

• Yantai Jereh Petroleum Equipment & Technologies Co.

Inventors

• Peng Zhang (328 patents)
• Rikui Zhang (81 patents)
• Xiaolei Ji (61 patents)
• Chunqiang Lan (56 patents)
• Sheng Chang (39 patents)
• Liang LV (73 patents)
• Xincheng Li (58 patents)
• Lintao Song (1 patents)
• Weiqiang Liu (17 patents)

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