Bogie for subway prepare I. Core Technological Specifications: Basic safety is the only real Criterion Bogie body castings usually are not everyday cast iron elements. They bear all the weight in the motor vehicle system and travellers and continuously withstand different impacts and vibrations through the observe. Their technological prerequisites https://www.friend007.com/post/558583_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html