__漪1,b-’’一,Z-一牙一万一’一卜‘蓄,鹰一万下一~一!芍二诬三_一)…丛生稀土在灰铸铁中应用交流会」交流稀土在灰铸铁中的应用经验1习89年2月北京联系人杜永安2.钢中稀土加入方法学术讨 论会交流喂丝法、喷吹法与吊挂法加稀土处理钢液的试验研究结果,促进稀土在钢中应用推 __ Yi Yi, b- “a Z-a tooth Yiyi a Bu ’savings, eagle ten thousand one to one! Shaoyi framed three _ a) ... clusters of rare earth in gray cast iron application exchange meeting” Exchange of rare earth in gray cast iron in the experience of 1 Xi 89 years in February Beijing contact Duyong An 2. Rare Earth join in the steel seminar Exchange yarn feeding method, blowing method and hanging method plus rare earth treatment of molten steel As a result, the promotion of rare earth in the steel application push