金属是我国重要的物资。随着国民经济的发展,金属资源在数量上和品种上的需求日益增长,因此,国家对金属再生资源的回收利用越来越重视。但由于缺乏统一政令和具体有效的管理法规和管理措施,反映在具体的回收利用 Metal is an important material in our country. With the development of the national economy, the demand for metal resources in terms of quantity and variety is growing day by day. Therefore, the state pays more and more attention to the recycling of metal renewable resources. However, due to the lack of a unified government decree and specific and effective management regulations and management measures, reflected in the specific recycling