Full description of SEJ in hindi...
on demond, see this video at last for better understanding
#techgainer
#sej #switchexpansionjoint
important links 👇
Points and crossing video link
[ Ссылка ]
Glued joint
[ Ссылка ]
level crossing gate
[ Ссылка ]
HRMS
[ Ссылка ]
SEJ
[ Ссылка ]
LC TVU census
[ Ссылка ]
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