INTERNATIONAL PATENT: GAO, YONGGUANG, 高永光, GAO, YUNFEI, 高云飞, BEIJING DATOUZHUANG TECHNOLOGY CO., LTD., 北京大头桩科技有限公司 FILES APPLICATION FOR "METHOD FOR DETECTING UNDERREAMED BASE OBTAINED BY MEANS OF COMPOSITE POST-GROUTING AT PILE TIP"

Posted On: 2025-12-28

GENEVA, Dec. 28 -- GAO, Yongguang (No. 703, Building B, China Railway Fifth Institute Area, No. 9, Kangzhuang Road, Daxing DistrictBeijing 102600), 高永光 (中国北京市大兴区康庄路9号中铁五院小区B栋703号), GAO, Yunfei (No. 703, Building B, China Railway Fifth Institute Area, No. 9, Kangzhuang Road, Daxing DistrictBeijing 102600), 高云飞 (中国北京市大兴区康庄路9号中铁五院小区B栋703号), BEIJING DATOUZHUANG TECHNOLOGY CO., LTD. (No. 3307, Room 101, 9th Floor, Building 19, Zo...

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INTERNATIONAL PATENT: GAO, YONGGUANG, 高永光, GAO, YUNFEI, 高云飞, BEIJING DATOUZHUANG TECHNOLOGY CO., LTD., 北京大头桩科技有限公司 FILES APPLICATION FOR "METHOD FOR DETECTING UNDERREAMED BASE OBTAINED BY MEANS OF COMPOSITE POST-GROUTING AT PILE TIP"