INTERNATIONAL PATENT: CHINA RAILWAY NO.4 ENGINEERING GROUP CO., LTD, 中铁四局集团有限公司, ANHUI ENGINEERING MATERIAL TECHNOLOGY CO, LTD OF CTCE GROUP, 安徽中铁工程材料科技有限公司, NATIONAL ENGINEERING RESEARCH CENTER OF HIGH-SPEED RAILWAY CONSTRUCTION TECHNOLOGY, 高速铁路建造技术国家工程研究中心, YUNNAN CHINA RAILWAY NEW MATERIALS TECHNOLOGY CO., LTD, 云南中铁新材料科技有限公司 FILES APPLICATION FOR "METHOD FOR INCREASING AMOUNT OF AIR-QUENCHED STEEL SLAG AGGREGATE IN CONCRETE"

GENEVA, Aug. 3 -- CHINA RAILWAY NO.4 ENGINEERING GROUP CO., LTD (No. 96, Wangjiang East Road, Baohe DistrictHefei, Anhui 230000), 中铁四局集团有限公司 (中国安徽省合肥市包河区望江东路96号), ANHUI ENGINEERING MATERIAL TECHNOLOGY CO, LTD OF CTCE GROUP (No. 338 Tianhe Road, Luyang Industrial ParkHefei, Anhui 230000), 安徽中铁工程材料科技有限公司 (中国安徽省合肥市庐阳工业园区天河路338号), NATIONAL ENGINE...