Help my grammar!Please! When it comes to Beijing, people often immediately talk about her extensive and profound regional culture, grand and magnificent urban architecture, and colorful fashion art. For a noted historic and cultural city, these are enough to reflect the characteristics and quality of Beijing so that its another feature is occasionally overlooked - Beijing used to be one of the central cities leading China's modern industrial development. At the old site of Beijing steel plant,there are many important industrial heritages such as iron smelting furnace, steelmaking converters and high speed wire rod mills and other original equipment and facilities,which have been well protected, people can feel "how the steel was tempered ".