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《拉链用稀土铝合金》鉴定会于1986年11月24日在包头召开,会议由内蒙冶金机械厅主持。这个研究项目是由稀土研究院和集宁拉链厂共同承担的,在包头稀土研究院进
“Zipper with rare earth aluminum” appraisal will be November 24, 1986 in Baotou convened by the Inner Mongolia Metallurgical Machinery Office chair. This research project is jointly undertaken by the Rare Earth Research Institute and Jining Zipper Factory. At the Baotou Rare Earth Research Institute,