INTERNATIONAL PATENT: CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司, CNPC BAOJI PETROLEUM PIPE INDUSTRY CO., LTD., 中国石油集团宝石管业有限公司, CNPC NATIONAL OIL & GAS PIPE ENGINEERING TECHNOLOGY RESEARCH CENTER CO., 中油国家石油天然气管材工程技术研究中心有限公司 FILES APPLICATION FOR "BIMETALLIC COMPOSITE PIPE FOR HIGH-PRESSURE HYDROGEN STORAGE AND TRANSMISSION AND PREPARATION METHOD THEREFOR"
GENEVA, April 26 -- CHINA NATIONAL PETROLEUM CORPORATION (9 Dongzhimen North Street,Dongcheng District, Beijing 100007), 中国石油天然气集团有限公司 (中国北京市东城区东直门北大街9号), CNPC BAOJI PETROLEUM PIPE INDUSTRY CO., LTD. (No.1 Binhe Road, Hi-Tech Development Zone,Baoji, Shaanxi 721008), 中国石油集团宝石管业有限公司 (中国陕西省宝鸡市高新开发区滨河路1号), CNPC NATIONAL OIL & GAS PIPE ENGI...
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