HW H shaped beams 1.type:HW type 2.model:588*30012*20mm 3.usage:building, tower, beams, lifting equipment, ... size 588*300*12*20mm 1.good's information Material: Q235B,SM490,SS400,Q235B,Q345 ,Q345B Type: Hot rolled and welding type HW wide ... : high structure strength; Structure light dead weight; high stability; 2.model, size and theoretical Weight TypeModel(Height*width)H*BHBt1t2kg/mHWwide ...