一前言四年来鞍钢生产的恢复和发展是以非常惊人的速度进行的;在钢铁生产的利用系数上,鞍钢已经超过了资本主义国家的水平,保证了产品的质和量,并且积极准备了即将开工的各新型轧钢厂的产品试制工作。这些巨大的成绩,是在党的领导下经过全体职工努力的结果,而其中最重要 I. INTRODUCTION The recovery and development of Ansteel production over the past four years has been carried out at an alarming rate. Anshan Iron & Steel has surpassed the capitalist countries in terms of the utilization factor of steel production, ensured the quality and quantity of products, and prepared for the forthcoming Started the trial of the new rolling mill products. These great achievements are the result of the efforts of all staff under the leadership of the party, and the most important of these