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“日本金属加工机械技术展览会”于1984年6月5日——14日在北京举行。在展览会上展出电加工机床的有五个公司。展出机床见表1。
“Japan Metal Processing Machinery Technology Exhibition” in June 5, 1984 - 14 in Beijing. There are five companies that exhibit EDM machines at the exhibition. Exhibit machine 1.