In choice of rails for roadway writer prefers to have them rather heavy than so light that it should become difficult to maintain track on account of low places between ties and at junction of rails.
Efficiency in mine haulage construction
Coal Indus
Coal Industry ; 2 , n 5
1919
2 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Engineering Index Backfile | 1943
|Engineering Index Backfile | 1940
|Engineering Index Backfile | 1956
|Engineering Index Backfile | 1915