东北铜铅锌鑛务局自8月份在第三铜鑛召开了推广选鑛先进经验的交流会议以后,各鑛的领导同志都开始重视阶段选鑛先进经验的推广。截自目前为止,已经在现场正式推行的有:第三铜鑛、第一铜镀、第一铅锌鑛、第三铅锌鑛;正积极准备在现场推 Since the exchange meeting of the advanced experience of beneficiation was held in No. 3 Copper Mine in August, leaders of various mines have begun to attach importance to the promotion of the advanced experience in beneficiation at the stage. Till now, there have been officially launched at the scene: the third copper mine, the first copper plating, the first lead-zinc mine, the third lead-zinc mine;