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沈阳铸造研究所和沈阳市铸造学会于8月26日至31日在沈阳举行球铁技术讲座,学员来自全国82个单位,共120多人.特邀请日本草川隆次教授讲学.
Shenyang Institute of Foundry and Foundry Institute of Shenyang held a ductile iron technology seminar in Shenyang from August 26 to August 31 with more than 120 participants from 82 units nationwide.