INTERNATIONAL PATENT: CHINA RAILWAY NO.9 GROUP NO.4 ENGINEERING CO., LTD, 中铁九局集团第四工程有限公司, CHINA RAILWAY NO. 9 ENGINEERING GROUP ZHEJIANG ENGINEERING CO., LTD., 中铁九局集团浙江工程有限公司, CHINA RAILWAY NO.9 GROUP CO., LTD, 中铁九局集团有限公司 FILES APPLICATION FOR "CONSTRUCTION METHOD FOR TUNNEL CONNECTING CHANNEL"

GENEVA, Oct. 26 -- CHINA RAILWAY NO.9 GROUP NO.4 ENGINEERING CO., LTD (No.3-1 Jingbing Street, Shenhe DistrictShenyang, Liaoning 110013), 中铁九局集团第四工程有限公司 (中国辽宁省沈阳市沈河区敬宾街3-1号), CHINA RAILWAY NO. 9 ENGINEERING GROUP ZHEJIANG ENGINEERING CO., LTD. (Room 1038, Building 1No. 268, Shiniu Road, Nanmingshan StreetLiandu DistrictLishui, Zhejiang 323000), 中铁九局集团浙江工程有限公司 (中国浙江省丽水市莲都ࡒ...