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中国非金属矿工业总公司于1987年3月19日至21日在山东蒙阴金刚石矿召开了“蒙阴金刚石矿自磨试验选矿厂、多段破碎选矿厂生产工艺考查对比评定会”。参加会议的除省、地、县建材和非金属矿公司代表外,还有大专院校、研究所、设计院和地质部门的专家。与会代表对该矿用半年时间所取得的两选厂的考查资料、对比方法进行了
China Non-metallic Mining Industry Corporation held a “Mengyin diamond mine self-polishing test beneficiation plant, multi-section crushing beneficiation plant production process comparison assessment meeting” from March 19 to March 21, 1987 in Shandong Mengyin Diamond Mine. In addition to representatives of provincial, prefectural and county building materials and non-metallic mining companies attending the meeting, there are also experts from universities, research institutes, design institutes and geological departments. Participants on the mine six months of the two selected plant test data obtained, the comparative method was carried out