Rails covered by investigations weighed 30, 36, 45 and 50 kg per m, and were laid on Tokaido and Sobu lines; consideration also given to weight of rails from economic point of view. (In Japanese.)
Track maintenance work as affected by weight of rails
Japanese Gov Ry -- Bul
Japanese Government Railways -- Bulletin ; 21 , n 29
1933
47 pages
1 Supp plate
Article (Journal)
Japanese
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