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福建省南平铝厂李永煊同志,经过几年在生产实践中的探讨,提出了一个碳素锰铁炉料快速粗略计算的公式,现介绍给大家,并将来信和原文全部刊载。请广大读者将使用中的情况函告作者本人或本刊。—编者—
After years of discussion in production practice, Comrade Li Yongcheng of Nanping Aluminum Plant in Fujian Province put forward a formula for quick and rough calculation of carbon ferromanganese charge, which is now introduced to everyone and all future letters and original texts are published. Please readers will use the situation to the author or the author. -editor-