American Standard Steel Rail
Specifications: TR45, TR57
Standard: AREMA 2008
Material: ASSZ-1/U75V/U71Mn/1100/900A/700
Length: 8-25m
Specifications: TR45, TR57
Standard: AREMA 2008
Material: ASSZ-1/U75V/U71Mn/1100/900A/700
Length: 8-25m
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