(一)改革开放10多年来,我国铜材、铝材生产发展很快许多国有大中型铜铝加工企业引进了一大批国外先进技术和设备进行了技术改造,技术水平和装备水平有了很大的提高,还新建了大批地方中小型铜铝加工企业和乡镇加工企业。目前,全国铜材生 (I) In the past 10 years of reform and opening up, China’s production of copper and aluminum materials has developed rapidly. Many large and medium-sized state-owned copper and aluminum processing companies have introduced a large number of foreign advanced technologies and equipment to carry out technological transformation, and their technological level and equipment levels have been greatly improved. In addition, a large number of local small and medium-sized copper and aluminum processing companies and township processing enterprises have also been built. At present, the national copper students