一、实施“产品质量翻身战役”的必要性和紧迫性机械、汽车工业经过四十多年的发展，形成了一批具有实力的企业和一支较强的技术队伍，具备了一定的产品设计、开发和制造能力，为国民经济各部门的发展提供了大量的技术装备，对国民经济各部门的技术水平和经济效益的提高起到了 I. The Necessity and Urgency of Implementing the “Return of Product Quality Campaign” After more than 40 years of development, the machinery and automobile industry has formed a number of powerful companies and a strong technical team with a certain degree of product design. , development and manufacturing capabilities have provided a large number of technical equipment for the development of various sectors of the national economy, and have played a role in improving the technological level and economic efficiency of various sectors of the national economy.