CN204612879U - 一种检测冻结管密封性的检测装置 - Google Patents
一种检测冻结管密封性的检测装置 Download PDFInfo
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CN104697730A (zh) * | 2015-03-18 | 2015-06-10 | 中煤特殊凿井有限责任公司 | 一种检测冻结管密封性的检测装置 |
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CN104697730A (zh) * | 2015-03-18 | 2015-06-10 | 中煤特殊凿井有限责任公司 | 一种检测冻结管密封性的检测装置 |
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Inventor after: Shen Huajun Inventor after: Wu Cheng Inventor after: Liu Jiezhong Inventor after: Liu Yajun Inventor after: Huang He Inventor after: Ren Peng Inventor after: Li Gongsheng Inventor after: Wei Yanping Inventor after: Peng Cheng Inventor after: Liu Minggen Inventor before: Shen Huajun |
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