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2010年6月1日,山西省有色金属行业协会和山西省有色金属学会联合在太原山西黄河京都大酒店召开山西氧化铝及相
June 1, 2010, Shanxi Nonferrous Metals Industry Association and Shanxi Province Nonferrous Metals Association jointly held in Taiyuan, Shanxi Huangshi Kyoto Hotel Shanxi alumina and phase