... 12kg steel rails mine rail , crane rail , train rail , iron rail Standard: BS, DIN, GB, JIS Grade: 55Q, Q235, 45Mn, 50Mn 12kg steel rails Steel Rail1. Light Rail ... Length: 9m Material: 55Q Standard: South Africa Standard6. English Standard Rail Specification: 60A, 60R, 70A, 75A, 75R, 80A, 80R, 90A ... 12m Material: U71Mn Standard: GB3426-82 6-30kg railroad light steel rail for farm or mining steel rail