截止2005年底,全世界约有2012个挤压铝材企业,其中中国约650个,占总数的32.2%,全球保有挤压机约8000台,中国有4250台左右,占世界的53.1%;世界总产量约11000kt,中国约3520kt,占世界的32.0%;全球平轧铝材与挤压铝材之比为58:42,建筑挤压铝材与工业挤压铝材之比为55.5:44.5;全世界 By the end of 2005, there were about 2012 extruded aluminum enterprises in the world, of which about 650 were from China, accounting for 32.2% of the total. There were about 8,000 extruders around the world, with about 4,250 units in China, accounting for 53.1% of the world’s total. The world The total output is about 11000kt and China is about 3520kt, accounting for 32.0% of the world. The global ratio of flat-rolled aluminum to extruded aluminum is 58:42, the ratio of building extruded aluminum to industrial extruded aluminum is 55.5: 44.5, worldwide