... beams 1.type:HW type 2.model:588*30012*20mm 3.usage:building, tower ... stub etc Q235b H beams HW wide flange type H shaped steel -- of size 588*300*12*20mm 1.good's ... information Material: Q235B,SM490,SS400,Q235B,Q345 ,Q345B Type: Hot rolled and welding type HW ... *300900*30090030016282433. real pictures for you Q235b H beams HW wide flange type H shaped steel -- of size 588 ...