Heavy steel rails mine rail , crane rail , railroad steel rail Standard: BS, DIN, GB, JIS Grade: 55Q, Q235, 45 Heavy steel rails Steel Rail1. Light Rail ... , 55Q Standard: YB222-63, GB11264-892 GB Heavy Rail Specification: 38kg/m, 43kg/m, 50kg/m ... Rail Specification: CR80, CR100 Unit Weight: 63.69kg/m, 88.96kg.m Length: 12m Material: U71Mn Standard: GB3426-82 Heavy railroad steel train rail ...