INTERNATIONAL PATENT: CHINA DESIGN GROUP CO., LTD., 华设设计集团股份有限公司, CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER CO., LTD., 中交公路长大桥建设国家工程研究中心有限公司, JIANGSU PROVINCIAL TRANSPORTATION ENGINEERING CONSTRUCTION BUREAU, 江苏省交通工程建设局 FILES APPLICATION FOR "HIGH-PRESSURE JET GROUTING PILE BODY LEAKAGE POINT DETECTION DEVICE AND DETECTION METHOD AND OPERATION METHOD"

GENEVA, June 1 -- CHINA DESIGN GROUP CO., LTD. (No. 9 Ziyun Road, Qinhuai DistrictNanjing, Jiangsu 210001), 华设设计集团股份有限公司 (中国江苏省南京市秦淮区紫云大道9号), CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER CO., LTD. (302, 3rd Floor, No. 85 Deshengmenwai StreetXicheng District, Beijing 100032), 中交公路长大桥建设国家工程研究中心有限公司 (中国北京市西城区德胜门外...