... GB JIS) 1.Grade:Q235B,SS400,Q345B,S235JR,S275JR,ASTM-A36 2.Size:100x100mm-900x300mm 3.Thickness:10-28m Description ... : H beams (ASTM BS GB JIS)Size: 100x100mm-900x300mmThickness: 10mm-28mmLength: 5. ... 8m-12mStandard: GB/JIS/ASTM/BS Material: Q235B,SS400,ASTM-A36,S235JR SizeTheoreticalweight (kg/m)sizeTheoretical weight (kg ...