Bogie for subway coach I. Core Technological Needs: Basic safety is the only real Criterion Bogie body castings will not be everyday cast iron elements. They bear all the weight in the motor vehicle system and travellers and continuously withstand different impacts and vibrations with the observe. Their complex prerequisites https://www.friend007.com/post/558581_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html