... : 12kg/m, 15kg/m, 18kg/m, 22kg/m, 24kg/m, 30kg/m Unit Weight: 12.2kg/m, 15.2kg/m, 18.06kg/m, 22.3kg/m, 24.46kg/m, 30.1kg/m Length ... .833kg/m, 30.618kg/m, 29.822kg/m 34.807kg/m, 37.455kg/m, 37.041kg/m 39.761kg/m 45.099kg/m, 50.182kg/m, 56.398kg/m Length ... , CR100 Unit Weight: 63.69kg/m, 88.96kg.m Length: 12m Material: U71Mn Standard: GB3426-82 15-30kg farm and mining steel rails ...