1999年,世界主要的34个铸件生产国家共制造出了6478万吨各种铸件,详见表1。 从铸件产量来说,有逐年下降的趋势。例如1995年这34个国家共生产了6975万吨铸件。 再看按照铸件生产量排行榜的前10位国家,其变化也不小。美国、日本、俄罗斯的铸件产 In 1999, a total of 64.78 million tons of various castings were produced by the 34 major casting countries in the world, as shown in Table 1. From casting production, there is a downward trend year by year. For example, in 1995, a total of 69.75 million tons of castings were produced in 34 countries. Look at the top 10 countries in terms of casting production rankings, the change is not small. United States, Japan, Russia casting production