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一、前言硫在钢中危害很大,它直接影响钢材的性能。随着工业的发展和技术的提高,为了提高一些特殊钢材的质量及使用性
First, the preface sulfur is very harmful in the steel, it directly affects the performance of the steel. With the development of industry and the improvement of technology, in order to improve the quality and usability of some special steel products