70年代资本主义国家的经济发展极不平衡,也影响到了有色金属加工工业的发展。70年代初期,延续了60年代的趋势,铝加工半成品以及铜、铝电线材料获得了迅速发展,但1974—1975年却成为战后生产下降最严重的年份。铜轧制品生产的增长速度极为缓慢。1975年,美国的生产下降到1962年水平,甚至低于朝鲜战争年代的水平。而其他资本主义国家,这种制品的生产下降倒不很明显。 The economic development of the capitalist countries in the 1970s was extremely unbalanced and affected the development of the non-ferrous metal processing industry. In the early 1970s, continuing the trend of the 1960s, rapid progress was made in the processing of semi-finished aluminum products and copper and aluminum wire materials. However, 1974-1975 was the year with the worst decline in post-war production. Copper rolling production growth rate is extremely slow. In 1975, the U.S. production dropped to the level of 1962, even below the level of the Korean War. In other capitalist countries, the decline in the production of such products is not obvious.