本文简要阐述了应用工业工程技术可以降低成本，提高生产率和经济效益，适应精益化管理的需要。
The article briefly sets forth the technology of Industry Engineering, its applying can reduce costs, raise productivity and economy benefit. It suits the need of Lean Management.
最后结合济钢集团有限公司技术改造项目实例，成功地把项目精益化管理理念应用到钢铁企业技术改造中。
Finally, with the practice of technology renovation project in Jigang Group, the lean project management notion is applied successfully in the technology renovation project in steel company.
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