Bogie for subway teach I. Main Technical Necessities: Safety is the sole Criterion Bogie body castings are not common Forged iron parts. They bear the complete body weight of your car entire body and passengers and repeatedly face up to many impacts and vibrations in the track. Their specialized needs https://www.scoop.it/topic/okok0972/p/4168348898/2025/10/10/improve-the-environment-and-passenger-experience