Bogie for subway teach I. Main Specialized Requirements: Basic safety is the only real Criterion Bogie body castings will not be normal Solid iron sections. They bear the whole fat of your car human body and travellers and consistently endure various impacts and vibrations from your observe. Their complex necessities https://www.friend007.com/post/558581_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html