1.Steel heavy rail 2.Standard: GB-11264, YB222-63 3.Grade:Q235/ ... Size: 38kg/m, 43kg/m, 50kg/m Light rail,Heavy steel rail,Crane rail Specifications 1Standard:GB11264-89, YB222-63, GB2585-20072Size:6kg ... 50Mn5Certificate:ISO, MTC, SGS6Delivery term:5-25 days7Packaging: 1. Light rail:Size: 6kg/m, 8kg/m, 12kg/m, 15kg/m, ... can be customized as per your requests.And welcome to inquire and discuss with us.