... steel rails Steel Rail1. Light Rail Specification: 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 ... , GB2585-2007vv3. Crane Rail Specification: QU70, QU80, QU100,QU120 Unit Weight: 52.80kg/m, 63.69kg/m, 88.96kg/m, 118.8kg/m Length: 12m Material ...