The progress in recent years in kinds and qualities of ironmaking raw material, through applying technical innovation ,strengthening operation management, technical and economic progress.

• 介绍了近几年炼铁用料品种、原料质量的变化情况。通过实施技术改造和强化操作管理,实现了工艺水平升级,技术经济指标进步,成效显著。