請問鋼軌代碼 - 土木
By Zenobia
at 2014-07-16T23:53
at 2014-07-16T23:53
Table of Contents
各位高手好:
軌道工程中,鋼軌表示方式除了公斤重外,
有時候後面會有一個代碼,
例如: JIS 1103 37A 50N等等,
想請問A, N, S的定義為何?
謝謝.
--
軌道工程中,鋼軌表示方式除了公斤重外,
有時候後面會有一個代碼,
例如: JIS 1103 37A 50N等等,
想請問A, N, S的定義為何?
謝謝.
--
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土木
All Comments
By Tracy
at 2014-07-17T01:35
at 2014-07-17T01:35
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