... quantity of one kinds should be upto 50 tons, if we have not the mould, we ... /U71MnStandard: GB/T699-1999,GB2585-2007 or Other3,Crane RailModel: QU70,QU80,QU100,QU120Size: 52.8kg/m ... 69kg/m, 88.96kg/m, 118.1kg/mLength: Crane Railor Other Length Accord RequirementMaterial: U71MnStandard: YB/T5055 ... 653TB501521327015.512.5-2551.514TB601761507316.59-12.5,25 60.643TB75192 75 12.5-2574.414TBCrane railHeight ...