... 1.Light Rail Specification: 4kg/m, 6kg/m 8kg/m,9kg/m, 12kg/m, 15kg/m, 18kg/m, 22kg/m ,24kg/m, 30kg/m 2.Grade: Q235B/50Q/55QRail ... 24.0mmModel: 30kg/mCertification: GB standardMaterial Feature: Fire ResistantMain parameter:Company Information:Packing & Delivery:Packing Details: Export standard packing. If ... railway, you can choose light rail size:9kg/m,12kg/m,22kg/m,30kg/mIf you use it in passenger and ...