Introduction to the Dongjiao Pavilion: The Dongjiao Pavilion mainly displays rolling stock, with a construction area of ​​16,500 square meters. There are 8 display lines with different track bed structures and different sleeper forms in the exhibition hall, which can display 80-90 units at the same time. Rolling Stock. Currently, there are more than 50 refurbished rolling stock on display in the exhibition hall, whose manufacturing years span from 1881 to 1993.