9 Years
size Kg/m specification(mm) weight(kg/m) section a b c d 8 65 54 25 7 8.42 Light steel rail Material:Q235, 55Q 12 69.85 69.85 38.1 7.54 12.2 15 79.37 79.37 42.86 8.33 15.2 18 90 80 40 9 18.06 22 93.66 ...
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