GENEVA, May 4 -- CHINA RAILWAY NO.5 ENGINEERING GROUP CO., LTD GUIZHOU SUBSIDIARY (No. 23 Zaoshan Road, Yunyan DistrictGuiyang, Guizhou 550000), 中铁五局集团贵州工程有限公司 (中国贵州省贵阳市云岩区枣山路23号), CHINA RAILWAY NO.5 ENGINEERING GROUP CO., LTD (No. 23 Zaoshan Road, Yunyan DistrictGuiyang, Guizhou 550000), 中铁五局集团有限公司 (中国贵州省贵阳市云岩区枣山路23号) filed a patent application (PCT/CN2024/116445) for ...