INTERNATIONAL PATENT: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD., 攀钢集团攀枝花钢铁研究院有限公司, CHENGDU ADVANCED METAL MATERIALS INDUSTRY TECHNOLOGY RESEARCH INSTITUTE CO., LTD., 成都先进金属材料产业技术研究院股份有限公司 FILES APPLICATION FOR "METHOD FOR INCREASING HARDENING THICKNESS OF RAILHEAD AT STEEL RAIL FLASH WELDING JOINT AND STEEL RAIL"

GENEVA, March 16 -- PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD. (No.90 Taoyuan Street, East DistrictPanzhihua, Sichuan 617000), 攀钢集团攀枝花钢铁研究院有限公司 (中国四川省攀枝花市东区桃源街90号), CHENGDU ADVANCED METAL MATERIALS INDUSTRY TECHNOLOGY RESEARCH INSTITUTE CO., LTD. (No.1533 Xiangdao Avenue, Qingbaijiang District, Chengdu, China (Sichuan) Pilot Free Trade ZoneChengdu, Sichuan 610300), 成都先进金属材料产业技术研究院股份੍...