INTERNATIONAL PATENT: SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RESEARCH CO., LTD, 中钢集团马鞍山矿山研究总院股份有限公司, SINOSTEEL MAANSHAN NEW MATERIAL TECHNOLOGY CO., LTD, 中钢集团马鞍山矿院新材料科技有限公司 FILES APPLICATION FOR "WEAR-RESISTANT HIGH-STRENGTH LIGHTENING ADMIXTURE FOR DRILLING FLUID AND PREPARATION METHOD THEREFOR"

GENEVA, Oct. 18 -- SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RESEARCH CO., LTD (No. 666, Xitang Road, Economic-Technological Development ZoneMaanshan, Anhui 243000), 中钢集团马鞍山矿山研究总院股份有限公司 (中国安徽省马鞍山市经济技术开发区西塘路666号), SINOSTEEL MAANSHAN NEW MATERIAL TECHNOLOGY CO., LTD (No. 666, Xitang Road, Economic-Technological Development ZoneMaanshan, Anhui 243000), 中钢集团马鞍山矿院新材料科技有...