CN208380584U - 一种超前小导管注浆封堵装置 - Google Patents
一种超前小导管注浆封堵装置 Download PDFInfo
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Inventor after: Li Longxi Inventor after: Guo Wenbo Inventor after: Yang Junsheng Inventor after: Zhang Cong Inventor after: Xie Yipeng Inventor after: Bai Pengpeng Inventor before: Li Longxi Inventor before: Guo Wenbo Inventor before: Yang Shengjun Inventor before: Zhang Cong Inventor before: Xie Yipeng Inventor before: Bai Pengpeng |