沪宁杭地区球墨铸铁协会、机械工业部农机局铸造行业组、中国铁道学会铸造组和无锡球墨铸铁研究所于七月二十一日至八月二十四日在无锡联合举办了第二期“铸铁合金及其冲天炉熔炼”学习班。学习班分高级班(相当于单科大专)和普通班(相当于单科中专)。参加学习班的有来自十七个省市的九十多名学员。学习班聘请了沪宁杭地区铸造界有名的教授、付教授和讲师任教。学习期间还作了十多次专题讲座并 The Association of Foundry Industry of Agricultural Machinery Bureau of the Ministry of Machinery Industry, the Foundry Group of China Railway Society and the Institute of Ductile Iron Research of Wuxi were jointly held the second phase Cast Iron Alloy and Cupola Smelting Workshop. Class division senior class (equivalent to single college) and ordinary classes (equivalent to a single secondary school). More than 90 students from 17 provinces and cities attended the class. The class hired well-known professors, casting professors and lecturers in Shanghai-Nanjing-Hangzhou-Hangzhou area. During the study also made more than ten seminars and