heavy rail 60kg/m,Heavy Rail Size. 33kg/m,38kg/m,43kg/m,50kg/m Material, Q235 ,55Q,u71Mn GB JIS DN 6m,8m,12. ... :www.tsyfgm.comOur product details as followed; RAIL SIZE(KG/M)Specification (mm)Section area F(mm2)Theoretical weight (KG ... /M)ABCDHeavyRail331201106012.542.533.28638134114681349.538.73431401147014.557.044.653501521327015.565. ...