CN210049860U - 一种电泵简易井口高压密封装置 - Google Patents
一种电泵简易井口高压密封装置 Download PDFInfo
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Effective date of registration: 20201015 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: 300 457 days, 16 floors, PetroChina Tianjin Building, 83 Second Avenue, Binhai New Area Economic and Technological Development Zone, Baodi District, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |