HW H shaped beams 1.type:HW type 2.model:588*30012*20mm 3.usage:building, tower, beams, lifting equipment, method 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 wide one; HM medium one; HN narrow one.Application: Steel structure bearing support; Ships, ...