... *150*73*15.5mm Steel rail, Light steel rail, Heavy steel rail, Crane steel railUsage: Light rail, Heavy rail, Crane rail, I beam of Mine usage ... : ASME GB/TB DIN API JIS BS GBSpec.: Light steel rail 65*52*24*7-107.95*107.95*60.33 ... *12.3, Heavy steel rail 134*114*68*13, Crane 130*130*80*32 ... that we can step forward together.Thanks & Best regards Heavy rail 38kg