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Railroad Track Steel / Railway Rail Material AISI ASTM DIN GB Standard2018-02-01 15:25:41 |
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Light Weight Q235 Grade Train Track Material , Length 6 to 12 m2018-02-01 15:25:41 |
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High Strength Railroad Steel Rail Bottom Width 114mm - 150mm GB Standard2017-09-22 13:41:20 |
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50Mn / U71Mn Grade Railroad Steel Rail GB2585-2007 With Long Lifetime2017-09-22 13:41:20 |