Mine Railroad U71Mn Steel Rail Material: 55q/Q235BLength: 6-12mSurface:nural,black,oiled,plainStandarnd:GB3426-82,YB/T5055-93Can be designed straight,curved,arc-shapedSize: 6kg, 9kg, 12kg, 15kg, 22kg, 30kg, 8kg, 18kg, 24kgThe installation drawings can be offeredsteel rail specificationsRail head height:+0.5mmRail head width:+ 0.5mmWeb..