... -1989 2.Grade:Q235 55Q 3.Type:9-30kg/m 4.Length:5.0-10.0mm Light Steel Rail (GB 11264-1989 ... .5032.1017.4835.7210.305.908.947.0, 6.5, 6.0,5.5, 5.01269.8569.8538.1019.8537.7012.307.5412.2010 ... .0, 9.5, 9.0,8.5, 8.0, 7.5,7.0, 6.5 ... .9950.0016.6710.7222.3010.0, 9.5, 9.0,8.5, 8.0,7.5, 7.030107.95107.9560.3330.9557.5519 ...