广东省铸造情报网于一九七五年二月廿五日至廿六日在佛山市召开了钇基重稀土球铁科研情况交流会。出席会议的有省铸造情报网核心小组单位、郑州机械所、冶金部有色金属研究院、省工交办、省科技局等,共29个单位、43人。会上,佛山水泵厂代表介绍了一年多来 Foundry Information Network of Guangdong Province held a seminar on the research status of yttrium-based rare earth ductile iron in Foshan from February 25 to February 25, 1975. A total of 29 units and 43 people attended the meeting, including the key unit of provincial foundry intelligence network, Zhengzhou Machinery Institute, Non-ferrous Metal Research Institute of Ministry of Metallurgy, Provincial Labor Office and Provincial Science and Technology Bureau. At the meeting, Foshan Pump Factory representatives introduced more than a year