hot rolled RAIL CARBON H Beam 1)100*100*6*8-912*302*18*34mm 2) Grade:ASTM,Q235 SS400 Q345 3)civil construction,engineering hot rolled RAIL CARBON H Beam 1)100*100*6*8-912*302*18*34mm 2)Grade: AISI,ASTM,Q235 Q235B SS400 Q345B JIS.DIN. 3)civil construction,engineering First class quality cheap pirce, H-beam mainly used for industrial workshop, civil construction, municipal engineering, oil platform ...