Bogie for subway teach I. Main Specialized Requirements: Safety is the one Criterion Bogie frame castings are not standard Forged iron parts. They bear the complete body weight of the car system and travellers and constantly stand up to different impacts and vibrations with the monitor. Their complex necessities revolve https://www.mymeetbook.com/post/997341_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html