Bogie for subway teach I. Core Technical Demands: Protection is the Only Criterion Bogie frame castings are usually not regular Solid iron pieces. They bear the whole fat of your vehicle entire body and passengers and continually face up to several impacts and vibrations from the track. Their technical specifications https://www.friend007.com/post/558826_in-curved-sections-or-areas-with-frequent-braking-the-surface-of-the-rail-will-d.html
The Main Technical Prerequisites And Challenges of Castings for Bogies
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