H beams (ASTM BS GB JIS) 1.Grade:Q235B,SS400,Q345B,S235JR,S275JR,ASTM-A36 ... .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 ( ... Xiamen Seaside Building 18th H beam (ASTM, BS, GB, JIS)