各国发展钢铁工业的初衷大多是为了满足本国国民经济发展的需要 ,但随着世界经济的快速发展 ,今天的基础设施建设已变得相对完善 ,造成了世界范围内的钢铁生产过剩。虽然经过两次经济危机后 ,大部分国家作出了调整 ,将单个生产能力由原来的 10 0 0万ｔ控制在 50 0∽ 60 0万ｔ的 The original intention of all countries in the development of the steel industry was to meet the needs of their own national economy. However, with the rapid development of the world economy, the infrastructure construction of today has become relatively perfect, resulting in over-production of steel in the world. Although after the two economic crises, most countries have made adjustments to control their individual production capacity from 10 million tons to 50 million to 60 million tons