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, PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO., LTD., 攀钢集团攀枝花钢钒有限公司 FILES APPLICATION FOR "DISSIMILAR-STRENGTH HOT-ROLLED EUTECTOID PEARLITIC RAIL WELDING JOINT AND POST-WELDING COOLING METHOD THEREFOR"

GENEVA, Feb. 1 -- 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), PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO., LTD. (Xiangyang Village 1, East DistrictPanzhihua, Sichuan 617000), 攀钢集团攀枝花钢钒有限公司 (中国四川省攀枝花市东区向阳一村) file...