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云南省冶金厅于1984年1月9—14在大姚铜矿召开了云南有色选矿现场经验交流会。这次会议的主要任务是检查1983年有色选矿工作及经济效益情况;交流挖、革、改经验;讨论和部署1984年有色选矿工作;评选1983年度“选矿杯”优胜重选厂和
Yunnan Metallurgical Office in January 1984 January 9-14 held in Dayao Copper Mine, Yunnan colored dressing site experience exchange meeting. The main task of this meeting was to examine the work of chromite dressing and economic benefits in 1983; to exchange experience in digging, leather and reform; to discuss and deploy the 1984 colored dressing work; to select the 1983 “dressing cup”