Bogie for subway coach I. Core Technological Needs: Protection is the only real Criterion Bogie frame castings are certainly not normal Solid iron sections. They bear the whole fat with the vehicle physique and passengers and continually face up to many impacts and vibrations from the track. Their technical needs https://500px.com/photo/1117471507/rail-joint-bar-by-okok-okok
The Core Complex Requirements And Problems of Castings for Bogies
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