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Blog Entry# 2123447
Posted: Jan 11 2017 (13:38)
2 Responses
Last Response: Jan 11 2017 (14:35)
2 Responses
Last Response: Jan 11 2017 (14:35)
As per my knowledge...adjusting track extension or contraction for preventing track fracture
that is "switch expansion joint"these are provided at intervals in the track to allow space for rails to expand in hot weather