heavy rail 60kg/mHeavy Rail Size. 33kg/m,38kg/m,43kg/m,50kg/m Material, Q235 ,55Q,u71Mn GB JIS DN 6m,8m,12.5M Our company Tangshan Yunfeng Industrial & trading Co,.ltd supplying different type of Steel products to all over the world, such as:1) H-beam, Steel beam;2) I-beam, IPE, I PEAA;3) Channel ,Angle;4)Light Rail and Heavy Rail;Our product details as followed;RAIL SIZE(KG/M)Specification (mm) ...