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南通铸管厂自1988年初进行生产稀土铸铁管可行性研究,在东南大学的协作下,经过反复试制,总结提高,于1991年7月顺利地试制成功稀土铸铁管。同年10月首批Dg400mm稀土铸铁管、Dg500mm、Dg300mm稀土铸铁煤气管2000t分别送经淮南矿务局和杭州、安徽、芜湖煤气公司等单位试用,经产品售后质量跟踪检查,管线安装泵等均一次成功,运行良好,深受用户好评。经江苏省计经委批准,该产品列为1992年江苏省新产品开发计划内项目,并列为江苏省新技术推广项目,江苏省冶金工业厅于1992年6月18日在南通组织有关专家对稀土铸铁管进行技术鉴定并通过。
Nantong Ductile Iron Pipes Factory since early 1988 production of rare earth cast iron pipe feasibility study, under the collaboration of Southeast University, after repeated trial, summarize and improve, in July 1991 successful trial of successful production of rare earth cast iron pipe. In the same year in October the first batch of Dg400mm rare earth cast iron pipe, Dg500mm, Dg300mm rare earth cast iron gas pipe 2000t were sent to Huainan Mining Bureau and Hangzhou, Anhui, Wuhu Gas Company and other units trial by the product quality inspection follow-up after sale, pipeline installation pump Successful, well-run, well received by users. Approved by the Planning Commission of Jiangsu Province, the product was listed as a project of new product development in Jiangsu Province in 1992 and was listed as a new technology promotion project in Jiangsu Province. The Jiangsu Provincial Department of Metallurgical Industry organized in Nantong on June 18, Cast iron pipe for technical identification and adoption.