CN215672236U - 耐腐蚀盾构管片 - Google Patents
耐腐蚀盾构管片 Download PDFInfo
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- CN215672236U CN215672236U CN202122109905.0U CN202122109905U CN215672236U CN 215672236 U CN215672236 U CN 215672236U CN 202122109905 U CN202122109905 U CN 202122109905U CN 215672236 U CN215672236 U CN 215672236U
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Inventor after: Gu Yongzhi Inventor after: Feng Fang Inventor after: Huang Xiaoqing Inventor after: Liu Zhao Inventor after: Wang Gaopeng Inventor after: Wu Yifan Inventor after: Yuan Kai Inventor after: Guo Zhen Inventor after: Duo Yinghong Inventor after: Yang Jie Inventor before: Gu Yongzhi Inventor before: Feng Fang Inventor before: Huang Xiaoqing Inventor before: Liu Zhao Inventor before: Wang Gaopeng Inventor before: Wu Yifan Inventor before: Yuan Kai Inventor before: Guo Zhen Inventor before: Duo Yinghong Inventor before: Yang Jie |