... 50Mn ,U71Mn Standard: GB2585-813. Crane Rail Specification: QU70, QU80, QU100,QU120 Unit Weight: 52.80kg/m, 63. ... Japan& Korea Standard Rail Specification: 37A, 50N, CR73 Unit Weight:37.2kg/m, 50.4kg/m, 73. ... 935. South Africa Standard Rail Specification: 22,30 Unit Weight: 22.542kg/m, 30.25kg/m Length ... BS11:19857. India Standard Rail Specification: CR80, CR100 Unit Weight: 63.69kg/m, 88.96kg.m Length: ...