一、前言 我们的社会主义祖国诞生已经三十周年。在这三十年中,钢铁生产突飞猛进。但是为了达到四个现代化的要求,钢铁生产还需要大幅度的增长;不论在产量上、质量上、品种上都需要有明显的提高。为此我国将引进和建设一些象宝山钢铁总厂那样的现代化大型钢铁联合企业。但是国内和上海现有的 I. Preface The thirtieth anniversary of the birth of our socialist motherland. In these three decades, steel production has grown by leaps and bounds. However, in order to meet the requirements of the four modernizations, the production of steel needs to increase substantially. Both the quality and variety of products need to be significantly improved. For this reason, China will introduce and construct some modern large-scale iron and steel joint enterprises like Baoshan Iron and Steel Plant. But domestic and Shanghai existing