The book Proceedings of the Annual Convention 70 (1969) was written by author American Railway Engineering Association Here you can read free online of Proceedings of the Annual Convention 70 (1969) book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Proceedings of the Annual Convention 70 (1969) a good or bad book?
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732 Rail 241-3 Fie 17— Investigation 241— This 115-lb RE rail was submitted by the Chicago, Milwaukee St Paul & Pacific Railroad to determine the cause of head crushing Th!r't±:;erse sh^e tas cut through the area of ^-atest crushmg and e ched in a hot 50 percent aqueous solution of hydrochloric acid. The results ot a cnecK Ihemical analysS and a hardness survey showed that this rail has an excessive negative segregation. Rail 733 ZKo — 45 - -^4, Zi.'S — 6V - -^i 2^ — 63 — --X 231 — o....5— -t 235 — l - -% f51 — fco.S"— Z\(o — 5? — -l^i Z
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